Fiber Optics Microwave Transmission

Optical fiber is the medium of choice for high capacity digital transmission systems and high speed local area network. Besides these applications, optical fiber also can be used to transmit microwave signals for cable television, cellular radio, WLAN and microwave antenna remoting. To transmit microwave over optical fiber, the microwave signal is converted into optical form at the input of the fiber and at the output of the fiber, it is converted back to electrical signal. The main advantage of fiber transmission of microwave is reduced losses relative to metallic media (e.g. copper coaxial cable). This results in longer transmission distance without signal amplification or use of repeaters.

There are two approaches to optical signal modulation and recovery. The first type is IMDD (Intensity Modulation Direct Detection) and the second type is Coherent Detection. In IMDD, the optical source intensity is modulated by the microwave signal and the resulting intensity modulated signal passes through the optical fiber to a photodiode where the modulation microwave signal is converted back to electrical domain. In Coherent Detection, the optical source is modulated in intensity, frequency or phase by the microwave signal. The modulated signal passes through the optical fiber to the receiver where it is mixed with the output of a local oscillator (LO) laser. The combined signal is converted to electrical domain using a photodiode. This produces an electrical signal centered on the difference frequency between the optical source and the LO laser (i.e. intermediate frequency). This signal is further processed to recover the analog microwave signal.

RFoG (Radio Frequency over Glass) is the cable operators’ implementation of microwave transmission over optical fiber in which the coax portion of the HFC (Hybrid Fiber Coax) is replaced by a single fiber, passive optical network architecture (PON). RFoG allows cable operators to deploy fiber connectivity to customer premises (FTTP) while keeping its existing HFC and DOCSIS infrastructure. Like the HFC architecture, video controllers and data networking services are fed through a CMTS/edge router.

These electrical signals are then converted to optical and transported via a 1550 nm wavelength through a wavelength division multiplexer (WDM) and a passive splitter to a R-ONU (RFoG Optical Network Unit) located at the customer premises. R-ONUs terminate the fiber connection and convert the traffic to RF for delivery over the in-home network. Video traffic can be fed over coax to a set-top box, while voice and data traffic can be delivered to an embedded multimedia terminal adapter (eMTA), The return path for voice, data, and video traffic is over a 1310 nm or 1590 nm wavelength to a return path receiver, which converts the optical signal to RF and feeds it back into the CMTS and video controller.

The advantage of radio-over-fiber technology is that it centralizes most of the transceiver functionality by transmitting the microwave signals in their modulated format over fiber. This reduces the number of access points to antennas with amplifiers and frequency converters. In-building passive picocell for GSM or UMTS is implemented using radio-over-fiber. Wireless base stations are located in a central communications room and their outputs/inputs fed through RF multiplexers to lasers/photodiodes contained within the optical transceiver hub. The modulated optical signals are linked to/from the remote antenna units (AUs) in the building using single-mode optical fiber. The base station uses a combined detector/optical modulator, which is directly coupled to the antenna, so that no electrical amplification or other processing is required.

About the Author

Paul Ngai is a telecom consultant specialized in RF and Fiber Optic Networks. He is also the principal of Network Systems Technologies LLC (http://www.nstecs.net), a telecommunications consulting firm provides planning, analysis, design, testing and operation support services.

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10.5×28 Wildlife Pro Binoculars $369.99 PIO1022: Steiner’s new compact Wildlife Pro series binoculars are built to handle the world’s harshest conditions. Steiner Binoculars are tougher than ever, extremely lightweight, with innovative design, durable construction and the benefit of German engineered optics technology for a lifetime of dependable performance! The Wildlife Pro models are wrapped in a smooth, quiet and non-reflective earthtone rubber armoring that makes them almost invisible to wildlife. At only 0.68 lbs the 10.5×28 Wildlife Pro compact is just one ounce more than the 8.5×26 Wildlife Pro. When you need added power for long distance viewing but can’t be weighed down, the 10.5×28 Wildlife Pro is an excellent choice. Fully multi-coated optics and phase corrected roof prisms provide excellent color reproduction with brilliant clarity. Fast and precise center focusing make adjusting quick and easy. Features: -Phase corrected and provide sharp distortion-free edge to edge performance. -Long distances can focus down quickly to less than 108 in about two turns of the precision Fast Close Focus gearing. -Includes deluxe case and comfort neoprene strap. -Waterproof and shockproof. -Tough, portable and manufactured from precision alloy. -Steiner provides a 30 year limited warranty. Specifications: -Field of view: 264 feet @ 1000 yards. -Eye relief: 13 mm. -Weight: 0.68 lbs. -Dimensions: 1.8 H x 4.4 W x 5.2 D. $30 Manufacturer Rebate!

6015-Gen. 3P Multi-Purpose Night Vision Systems $3550.99 AQT1128: Features: -Rugged, lightweight and versatile designed for the most demanding of Night-time applications. -Highest quality in optics, design and functionality. -6015-3P is a versatile high-quality multi-purpose monocular. -Choice for professional night vision applications. -US Law Enforcement design. -Multi purpose unit. -Hand held monocular. -Hands free goggle. -Night-time photography (with use of optional camera adapter). -Mil spec headgear. Specifications: -Tube configuration: 3. -Magnification: 1x. -Resolution: 64-72 lp/mm. -Signal to noise ratio 16-24. -Detection range 300 M/Y. -Recognition range 250 M/Y. -Lens system F1:1.2, F…MM. -FOV: 40 . -Diopter adjustment: +2/-6. -Power supply: 1 AA battery. -Range of Focus: 0.25 m to infinity. -Controls: Digital. -Battery life: 60 hours. -Camera adaptable Yes. -Waterproof 1 m for 30 min. -Operation temperature: -40 + 50 C. -Storage temperature: -50 +70 C. -Dimensions: 2.2′ H x 2.6′ W x 4.3′ D. -Weight: 1.5 lbs.

ACOG 3×30 Amber Chev .223 w/TA60 – ACOG $1037 Trijicon new 3x30mm model is designed for law enforcement and military applications- where the combination of ample magnification, low light capability and long eye relief make the TA33-8 the Trijicon ACOG of choice. The TA33-8 3×30 ACOG Scope features Dual Illumination Amber Chevron .223 Ballistic Reticle. The TA33-8 also includes: (1) Flat top Mount (TA60)(1) Compact ACOG Scopecoat (TA62)(1) Medium sized Pelican Case (TA88)(1) Lenspen (LENSPEN)(1) Trijicon Logo Sticker (PR15)(1) Manual(1) Warranty CardSpecifications: Magnification 3 Objective Size 30 Bullet Drop Compensator Yes Length (in) 6.10 Weight (oz) 6.94 Illumination source Tritium/Fiber Optics Reticle Pattern Chevron a Day Reticle Color Amber Night Reticle Color Amber Calibration .223 Bindon Aiming Concept Yes Eye Relief (in) 1.90 Exit Pupil (mm) 10.00 Field of View ( ) 3.70 Field of View @ 100yrds (ft) 19.30 Adjustment @ 100 yds (clicks/in) 4 Tube Size N/A Mount TA60 Mount On/Comes With TA60 Housing Material Forged Aluminum Special Order No

ACOG 3×30 Ill Grn Ch .223 w/TA60 – ACOG $1171.2 The 3x30mm model is designed for law enforcement and military applications- where the combination of ample magnification, low light capability and long eye relief make the TA33 the Trijicon ACOG of choice. The TA33G-8 3×30 ACOG Scope features Dual Illumination Green Chevron .223 Ballistic Reticle. – - The TA33G-8 also includes: – - 1 Flat top Mount (TA60) – 1 Compact ACOG Scopecoat (TA62) – 1 Lenspen (LENSPEN) – 1 Trijicon Logo Sticker (PR15) – 1 Manual – 1 Warranty Card – - Specifications: – - Magnification 3.0 – Objective Size 30.0 – Bullet Drop Compensator Yes – Length (in) 6.10 – Weight (oz) 11.64 w/mount – Illumination source Fiber Optics & Tritium – Reticle Pattern Chevron – Day Reticle Color Green – Night Reticle Color Green – Calibration .223 – Bindon Aiming Concept Y – Eye Relief (in) 1.90 – Exit Pupil (mm) 10.00 – Field of View (?) 3.70 – Field of View @ 100yrds (ft) 19.30 – Adjustment @ 100 yds (clicks/in) 4.0 – Mount TA60 – Mount On/Comes With TA60 – Housing Material Forged Aluminum

AT&T 4-line Extended Range Cord/Cordless Small Business Phone System ?? $599.95 Sony’s ? (Alpha) NEX-5 takes mirror-less/finder-less, interchangeable-lens camera technology to the next level by integrating the resolving power of an APS-format imaging sensor in a camera body that’s 48% smaller and 49% lighter than traditional compact DSLRs. While the camera is physically smaller than a compact DSLR, it retains the imaging qualities of an APS imaging sensor, which contains 58% more surface area than a Four Thirds imaging sensor, and about 13 times the surface area of point-and-shoot imaging sensors. The end result is true pro-quality resolving power in a far smaller package. For still imaging, the NEX-5 captures JPEGs (Fine or Standard), RAW, or JPEG+RAW in a choice of sRGB or Adobe RGB color spaces. In addition to stills, the NEX-5 also captures HS 1080/60i video as well as Full-AVCHD video with Dolby Digital (AC-3) / MPEG-4 audio. For more precise audio there is an optional shoe-mounted shotgun mic that features 90?/120? tilt movement. The NEX-5 is designed to use Sony E-series lenses, a compact line of optics designed to work with the reduced flange distance that resulted from the removal of the reflex viewing system. The new E-series optics are smaller than Sony’s traditional DSLR optics while retaining the imaging qualities Sony is recognized for. In addition to Sony E-series optics, you can also use any of Sony’s traditional DSLR lenses (as well as all Minolta AF-mount optics) on the NEX-5 by using the optional LA-EA1 lens adapter. (Note – Manual focus and full-open aperture metering only when using LA-EA1 lens adapter) The Live View viewing system of the Sony NEX-5 consists of a hi-fidelity 3 , 921,600-dot TFT TruBlack LCD that can be tilted downward 45? and upwards of 80? for composing still or video images from extreme angles and/or in tighter shooting quarters. As for performance levels, the NEX-5′s Contrast Auto Focus system has quick response times and can capture full-res stills at burst-rates up to 7 frames-per-second. Low-light sho

ATN NVBNVYG3C0 Voyager 3-CGT $2049 The Voyager by ATN is a medium to long range night vision bi-ocular. The Voyager combines a high quality image intensifier tube with a two eyepieces that lets the user comfortably look through the Voyager with both eyes. The ATN Voyager Night Vision System comes standard with all of our proprietary Smart features such as digital controls,detachable 100-yard Infrared Illuminator and a proximity sensor that automatically turns the unit on or off. Whether you are boating, observing wildlife, or providing security for your home, the ATN Voyager is an excellent choice for your night vision needs. SMART features and easy-to-use digital controls. 3X magnification. Super fast, Multi-coated, all-glass optics. Dual eye viewing system for long viewing sessions. Detachable Long Range infrared illuminator. Rugged and versatile design. Water and fog resistance. Tripod mountable. Hand strap and neck strap for comfort of use. Limited Two-Year Warranty.

AccuPnt 1-4×24, G#4 Grn Dot 30mm – AccuPoint $956.16 The Trijicon AccuPoint features advanced fiber optics and several intelligent features that make this scope the right choice for all light conditions and even the harshest environments. All models in the AccuPoint Series operate battery freeeliminating the potential for failure during critical moments in the field. They also feature Trijicon’s Manual Brightness Adjustment Override, which allows you to control the light output of the fiber-optics during daylight. AccuPoint riflescopes include other advanced elements like multi-layer coated lenses for superior light transmission with no distortion, quick-focus eyepiece, long-eye relief, and precise windage and elevation adjustments.

BSA 15-45X50MM SPOTTING SCOPE W/TRPD/CS $79.99 @@ Exquisite optical performance, ruggedness and reliability in any field conditions, the New Spectre Spotting Scopes by BSA Optics, are compact and portable, useful under low light conditions, these spotting scopes will give you a brighter, clearer image and the magnification needed to see more details on your target. Our light-gathering capabilities of our new spotting scopes, is based on more light equals more clarity and detail which equals a brighter, clearer image. The Spectra spotting scope is a portable telescope, optimized for the observation of terrestrial objects. These are designed to bring distant land-based objects closer. Spotting scopes are ideal for viewing wildlife, bird-watching, hunting and land surveillance. @@ Want premium spotting scope with a birds eye view of wildlife? Than the new Spectre 15 – 45 x 50 spotting scope is an excellent choice. All weather fog proof and waterproof. With reliable performance and crisp, clear viewing across the field. Useful when it’s a cloudy rainy day or dry and sunny. This spotting scope is fit for any of your preferences.

Barska Huntmaster Riflescope $103.65 The Barska(r) Huntmaster series is the perfect choice for serious shooters or hunters who want a wealth of features and performance but dont want to spend a fortune. The Huntmaster combines high quality optics and rugged construction with accuracy and ease of use. Huntmaster scopes feature fully coated optics for bright clear views, rugged 1 monotube construction and are waterproof, fogproof and shockproof.

Barska Huntmaster Riflescope $103.65 The Barska(r) Huntmaster series is the perfect choice for serious shooters or hunters who want a wealth of features and performance but dont want to spend a fortune. The Huntmaster combines high quality optics and rugged construction with accuracy and ease of use. Huntmaster scopes feature fully coated optics for bright clear views, rugged 1 monotube construction and are waterproof, fogproof and shockproof.

Barska Huntmaster Riflescope $103.65 The Barska(r) Huntmaster series is the perfect choice for serious shooters or hunters who want a wealth of features and performance but dont want to spend a fortune. The Huntmaster combines high quality optics and rugged construction with accuracy and ease of use. Huntmaster scopes feature fully coated optics for bright clear views, rugged 1 monotube construction and are waterproof, fogproof and shockproof.

Barska Huntmaster Riflescope $103.65 The Barska(r) Huntmaster series is the perfect choice for serious shooters or hunters who want a wealth of features and performance but dont want to spend a fortune. The Huntmaster combines high quality optics and rugged construction with accuracy and ease of use. Huntmaster scopes feature fully coated optics for bright clear views, rugged 1 monotube construction and are waterproof, fogproof and shockproof.

Barska Huntmaster Riflescope $103.65 The Barska(r) Huntmaster series is the perfect choice for serious shooters or hunters who want a wealth of features and performance but dont want to spend a fortune. The Huntmaster combines high quality optics and rugged construction with accuracy and ease of use. Huntmaster scopes feature fully coated optics for bright clear views, rugged 1 monotube construction and are waterproof, fogproof and shockproof.

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Bushnell 7X50 Marine Waterproof w/Compass Binoculars + Accessory Package – ABUS7X50MWPK1 $164.95 Magnifying life does, indeed, include sea life. And these are just the binoculars to do it. The legendary 7x50mm Marine binoculars are a premier choice for spotting marinas, deadheads, or the fisherman’s best friend, feeding birds. Built to withstand the conditions that come along with the nautical world, they are not only nitrogen-purged to provide reliable waterproof/fogproof performance. The 13-7500 model is even hermetically sealed to further assure no moisture creeps in. Impressive light transmission from BaK-4 porro prisms, multi-coated optics and large UV-coated objective lenses brighten images from dusk-to-dawn. Marine binoculars not only float, but easy-grip rubber armoring protects and provides a secure hold should things get rough. Always nice, should an unexpected swell or throttle burst take you by surprise.

Bushnell H2O 10×25 Waterproof and Fogproof Binoculars $49.99 Bushnell H2O 10×25 Binoculars 131005, 131006 belong to well-known 100% waterproof Bushnell H2O Binoculars series.Like the name says, these binoculars are made for water. Splash them, soak them, dunk them ? and they’ll emerge 100% fog free and dry inside. Perfect for skiers, snowmobilers, anglers and kayakers. True waterproof construction and a rugged, non-slip rubber design makes the H2O series a simple choice for those whose lifestyle borders on the hyper side of active. Take them with you everywhere. Specifications of Bushnell H2O 10 x 25 Binoculars 13-1005, 13-1006: Bushnell H2O 10×25 Binoculars 13-1005, 13-1006 Power x Obj.10×25 Size ClassCompact Focus SystemCenter Prism SystemRoof Prism ClassBaK-4 Lens CoatingMC FOV, ft.@1000yds. / m@1000m330/110 Close Focus, ft./m15/4.6 Exit Pupil, mm2.5 Eye Relief12 EyecupsFold-Down Weight, oz./g13/369 Water/Fog ProofYes Adapt to TripodNo Features of Bushnell H2O 10 x 25mm Binoculars 131005, 131006: BaK-4 roof prisms for bright, clear, crisp viewing Multi-coated optics for superior light transmission and brightness Waterproof: O-ring sealed and nitrogen-purged for 100% reliable, fog-free performance Large center focus knob for easy, precise adjustments Non-slip rubber armor absorbs shock while providing a firm grip In addition to Bushnell H2O 10x25mm Binoculars, make sure to check other Bushnell Binoculars and other Bushnell products offered in our store.We are the largest Bushnell online authorized dealer / distributor. We offer fast shipping and best possible low prices on all Bushnell Binoculars including Camo Bushnell H2O 10 x 25 Binoculars 13-1006, Black Bushnell H2O 10 x 25 Binocular 13-1005C..

Butler Creek Flip-Open Scopecover 1.095 Objective Size 4 Black 30040 $7.99 FLIP-OPEN COVERSButler Creek’s patented instant action scope covers have been the number one choice of serious shooters and hunters worldwide for over 20 years. The Quiet Open lid opens at the touch of your thumb. The ergonomically designed red button directs your thumb pressure correctly without ever looking. The watertight friction mount anchors the covers securely to the scope while an airtight semi O-ring seals out dust and moisture to protect optics. The spring activated lids perform flawlessly under all weather conditions and extreme temperatures ranging from +120?F to -40?F. Flip-Open covers weigh less than an ounce and are manufactured in sizes to fit all brands and models of scopes. Their superior design serves both right or left handed shooters. (Check catalog page 662 for Sizes).

Butler Creek Flip-Open Scopecover 1.998 Objective Size 31 Black 30310 $8.16 FLIP-OPEN COVERSButler Creek’s patented instant action scope covers have been the number one choice of serious shooters and hunters worldwide for over 20 years. The Quiet Open lid opens at the touch of your thumb. The ergonomically designed red button directs your thumb pressure correctly without ever looking. The watertight friction mount anchors the covers securely to the scope while an airtight semi O-ring seals out dust and moisture to protect optics. The spring activated lids perform flawlessly under all weather conditions and extreme temperatures ranging from +120?F to -40?F. Flip-Open covers weigh less than an ounce and are manufactured in sizes to fit all brands and models of scopes. Their superior design serves both right or left handed shooters. (Check catalog page 662 for Sizes).

Callaway Golf 10×25 Nikon Tournament Binocular $52.99 With enough power to pull in details, yet small enough to fit into a pocket or pouch, the Callaway10X25 binocular offers superb performance at a great value. Folding to 5 X3 , this binocular is the perfect golf accessory. Convenient travel case, neckstrap and lens covers are included.Bright, multicoated optics: Multiple layers of anti-reflective compounds offer excellent brightness.BaK4 high index prisms: Extra-high resolution images.Smooth central focus knob: Fast range of focus for quick viewing.Durable and protective, rubber-armored coating: Provides a fast, sure, non-slip grip, wet or dry.Generous eye relief: An excellent choice for eyeglass wearers.

Canon 4427B002 8 mm – 15 mm f/4 Fisheye Lens for Canon EF/EF-S – 1.9x Optical Zoom – USM $1398 For filmmakers and photographers who want the look and feel only possible with extreme wide angle and fisheye photography, the new Canon EF 8-15mm f/4L Fisheye USM is a world-class choice. With its unique focal length range, the EF 8-15mm f/4L USM is the world’s widest fisheye zoom lens. It delivers 180 diagonal angle of view images for all EOS SLR cameras with imaging formats ranging from full-frame to APS-C, and provides 180 circular fisheye images for full-frame EOS models. It features UD glass for suppression of chromatic aberration, a Subwavelength coating for reduced ghosting, a newly developed Fluorine coating that keeps soiling, smears and fingerprints to a minimum, has full-time manual focus for instant switching from AF to Manual operation, and is built to the standards of the amazing Canon L-series of lenses. This means the finest optics, the best onstruction and the best performance available, all in a lens designed to stimulate creativity and deliver stunning images every time.

Canon EF 8-15mm f/4.0 L USM Fisheye Zoom Lens with Case & EW-77 Lens Hood + Canon Cleaning Kit $1399.95 Canon EF 8-15mm f/4.0 L USM Fisheye Zoom Lens Professional-grade Ultra-Wide Zoom Fisheye For filmmakers and photographers who want the look and feel only possible with extreme wide angle and fisheye photography the Canon EF 8-15mm f/4L Fisheye USM is a world-class choice. With its unique focal length range the EF 8-15mm f/4L USM is the worlds widest fisheye zoom lens. It delivers 180 degrees diagonal angle of view images for all EOS SLR cameras with imaging formats ranging from full-frame to APS-C and provides 180 degrees circular fisheye images for full-frame EOS models. It features UD glass for suppression of chromatic aberration a Subwavelength coating for reduced ghosting a newly developed Fluorine coating that keeps soiling smears and fingerprints to a minimum has full-time manual focus for instant switching from AF to Manual operation and is built to the standards of the amazing Canon L-series of lenses. This means the finest optics the best construction and the best performance available all in a lens designed to stimulate creativity and deliver stunning images every time. Key Features: The Worlds Widest Fisheye Zoom This innovative fisheye zoom does dual duty as the worlds first real 180 degrees circular fisheye and 180 degrees diagonal fisheye for cameras equipped with a full-size CMOS sensor and as a diagonal fisheye/ultra-wide lens for APS-C/H sensors. UD Glass UD (Ultra-low Dispersion) glass exhibits low refractive index low dispersion and exceptional particle dispersion characteristics compared to standard optical glass and significantly reduces chromatic aberration. Subwavelength Coating (SWC) This superior anti-reflective technology makes it possible to control flare and ghosting in lenses (particularly those with large-curvature elements) that could not be improved by other lens coating methods. Fluorine Coating This fluorine coating applied on top of the anti-reflective coating on the lens surface makes it easy to remove smudges and debris from

Canon EF 8-15mm f/4.0 L USM Fisheye Zoom Lens with Case & EW-77 Lens Hood + Tripod + Canon Cleaning Kit $1429.95 Canon EF 8-15mm f/4.0 L USM Fisheye Zoom Lens Professional-grade Ultra-Wide Zoom Fisheye For filmmakers and photographers who want the look and feel only possible with extreme wide angle and fisheye photography the Canon EF 8-15mm f/4L Fisheye USM is a world-class choice. With its unique focal length range the EF 8-15mm f/4L USM is the worlds widest fisheye zoom lens. It delivers 180 degrees diagonal angle of view images for all EOS SLR cameras with imaging formats ranging from full-frame to APS-C and provides 180 degrees circular fisheye images for full-frame EOS models. It features UD glass for suppression of chromatic aberration a Subwavelength coating for reduced ghosting a newly developed Fluorine coating that keeps soiling smears and fingerprints to a minimum has full-time manual focus for instant switching from AF to Manual operation and is built to the standards of the amazing Canon L-series of lenses. This means the finest optics the best construction and the best performance available all in a lens designed to stimulate creativity and deliver stunning images every time. Key Features: The Worlds Widest Fisheye Zoom This innovative fisheye zoom does dual duty as the worlds first real 180 degrees circular fisheye and 180 degrees diagonal fisheye for cameras equipped with a full-size CMOS sensor and as a diagonal fisheye/ultra-wide lens for APS-C/H sensors. UD Glass UD (Ultra-low Dispersion) glass exhibits low refractive index low dispersion and exceptional particle dispersion characteristics compared to standard optical glass and significantly reduces chromatic aberration. Subwavelength Coating (SWC) This superior anti-reflective technology makes it possible to control flare and ghosting in lenses (particularly those with large-curvature elements) that could not be improved by other lens coating methods. Fluorine Coating This fluorine coating applied on top of the anti-reflective coating on the lens surface makes it easy to remove smudges and debris from

Canon ZR900 miniDV Digital Camcorder $498 Around the world, the name Canon means optical excellence, advanced image processing and superb performance. And Canon digital video camcorders are no exception. Canon’s entry-level digital camcorders are designed to deliver the latest in style, features and advanced technology at a most affordable price. Starting with our exclusive Genuine Canon 41x Advanced Zoom, which combines the legendary Canon lens optics with our market-leading DIGIC DV image processor to deliver a fuller range of image quality and more flexibility when you’re shooting. The ZR900 is specifically designed to make it easier to capture great video, including a 680k Pixel CCD image sensor, 2.7 Widescreen LCD with a Soft LCD video light, Quick Start, Joystick control, Level and Grid Markers and more. The microphone terminal on the ZR900 makes it especially useful for educators and trainers to carefully capture the audio they need to make most effective use of the video they shoot. It’s also handy when you want to more easily record a live narration for your footage. All this comes together to deliver brilliant video that you can easily share with family and friends. Easy to use, great looking and terrific value- it’s the perfect choice for capturing all of life’s precious memories.

Canon ZR950 MiniDV Digital Camcorder $598 Around the world, the name Canon means optical excellence, advanced image processing and superb performance. And Canon digital video camcorders are no exception. Canon’s entry-level digital camcorders are designed to deliver the latest in style, features and advanced technology at a most affordable price. Starting with our exclusive Genuine Canon 48x Advanced Zoom, which combines the legendary Canon lens optics with our market-leading DIGIC DV image processor to deliver a full range of image quality and more flexibility when you’re shooting. The ZR950 is specifically designed to make it easier to capture great video, including a 1.07 Megapixel CCD image sensor, 2.7 Widescreen LCD with a Soft LCD video light, Multi-Angle Remote, Quick Start, Joystick control, Level and Grid Markers and more. The ZR950 is the top of the line of ZR camcorders. This latest addition to the ZR family also includes an array of features that turn your camcorder into a digital still camera, including 9 Point AiAF (Auto Focus), Progressive Photo, Simultaneous Photo Recording, Special Scene Modes, and Image Effects. It is also compatible with SD HC (High Capacity) memory cards for storing even more of your images. All this comes together to deliver brilliant video and digital photos that you can easily share with family and friends. Easy to use, great looking and terrific value- it’s the perfect choice for capturing all of life’s precious memories.

Carson Optical JK-042 10×42 Binocular $75 CNQ1044: The JK-042 JK Series 10x42mm close focus roof prism binoculars feature BAK-4 prisms and fully multi-coated optics for crisp, clear viewing. Large 42mm objective lenses gather plenty of light to ensure the viewing image is bright even in low light conditions. Superior close focus capabilities allow you to focus on objects as close as 6 feet in front of you! These binoculars are O-ring sealed and nitrogen purged making them waterproof and fogproof. Twist-up eyecups stop in three positions to provide optimal eye relief for all users. Large focus wheel turns smoothly for precise focus adjustments. Independent right diopter adjustment makes it possible to adjust the focus to allow for strength differences in each eye. The JK Series binoculars are the ideal choice for hunting, birding, hiking or fishing. Features: -Constructed of aluminum, glass and rubber. -Body is nitrogen purged and O-ring sealed. -Waterproof and fogproof. -BAK-4 prisms and fully multi-coated optics for crisp, clear viewing. -10x power magnification. -Field of View @ 1000 Yards: 306 ft. -Eye Relief: 16mm. -Minimum focus: 6 ft. -Overall Dimensions: 2 H x 5 W x 5.75 D. Instructions

Carson Optical JK-842 8×42 Binocular $94.5 CNQ1043: The JK-842 JK Series 8x42mm close focus roof prism binoculars feature BAK-4 prisms and fully multi-coated optics for crisp, clear viewing. Large 42mm objective lenses gather plenty of light to ensure the viewing image is bright even in low light conditions. Superior close focus capabilities allow you to focus on objects as close as 5 feet in front of you! These binoculars are O-ring sealed and nitrogen purged making them waterproof and fogproof. Twist-up eyecups stop in three positions to provide optimal eye relief for all users. Large focus wheel turns smoothly for precise focus adjustments. Independent right diopter adjustment makes it possible to adjust the focus to allow for strength differences in each eye. The JK Series binoculars are the ideal choice for hunting, birding, hiking or fishing. Features: -Constructed of aluminum, glass and rubber. -8x power magnification. -Field of View @ 1000 Yards: 320 ft. -Eye Relief: 22mm. -Minimum focus: 5 ft. -Overall Dimensions: 2 H x 5 W x 5.75 D. Instructions

Celestron 52229 20-60x 60 Spotting Scope – 60x 60 mm – Water Proof $97.4 The 60mm Waterproof Zoom Spotting Scope is a good choice for bird watching, nature or wildlife observation, hunting, and enjoying scenic views. This scope is extremely lightweight (under two pounds) and comes with both a soft case and an aluminum case. The high quality optics come at an economical price and enjoy a No Fault Limited Lifetime Warranty.

Celestron UpClose 10×50 Binocular – 10x 50mm – Prism Binocular $27.95 A binocular for all reasons! From nature to NASCAR, UpClose binoculars will handle your most demanding viewing challenges. These UpClose porro prisms are robust full-size binoculars that feature a large knurled center focus knob for smooth and accurate focusing and a diopter adjustment on the right eyepiece for fine tuning the focus to your individual eyesight requirements. Rubber hand grips with finger impressions and embossed logos provide comfort and a secure grip. Most important, UpClose binoculars feature high quality BK7 optics to provide you and your family bright, clear, and sharp views during a variety of outdoor activities like sporting events, birding, wildlife viewing, hiking, scenic nature walks, and concerts and live performances to name a few. The UpClose is an ideal choice for an affordable high quality binocular that will provide years of enjoyable use.

Celestron UpClose 52222 118×50 Telescope – 118x 50 mm – Water Proof $84.95 The 50 mm Waterproof UpClose Spotting Scope is a good choice for bird watching, nature or wildlife observation, hunting and enjoying scenic views. This scope is extremely lightweight (under two pounds) and comes with both a soft case and an aluminum case. The high quality optics come at an economical price and enjoy a No Fault Limited Lifetime Warranty.

Celestron UpClose 52228 118×50 Spotting Scope – 118x 50 mm – Water Proof $64.95 The 50mm Waterproof UpClose Spotting Scope is a good choice for bird watching, nature or wildlife observation, hunting, and enjoying scenic views. This scope is extremely lightweight (under two pounds) and comes with both a soft case and an aluminum case. The high quality optics come at an economical price and enjoy a No Fault Limited Lifetime Warranty.

Celestron UpClose 7×35 Binocular – 7x 35mm – Prism Binocular $19.95 A binocular for all reasons. From nature to NASCAR, UpClose binoculars will handle your most demanding viewing challenges. The economically-priced UpClose Porro Prism Series is comprised of four full-size models, including one zoom model. These UpClose porro prisms are robust full-size binoculars that feature a large knurled center focus knob for smooth and accurate focusing and a diopter adjustment on the right eyepiece for fine tuning the focus to your individual eyesight requirements. Rubber hand grips with finger impressions and embossed logos provide comfort and a secure grip. Most important, UpClose binoculars feature high quality BK7 optics to provide you and your family bright, clear, and sharp views during a variety of outdoor activities like sporting events, birding, wildlife viewing, hiking, scenic nature walks, and concerts and live performances to name a few. The UpClose is an ideal choice for an affordable high quality binocular that will provide years of enjoyable use.

Celestron Upclose 142×60 Spotting Scope – 142x 60 mm – Water Proof $84.95 The 60 mm Waterproof UpClose Spotting Scope is a good choice for bird watching, nature or wildlife observation, hunting and enjoying scenic views. This scope is extremely lightweight (under two pounds) and comes with both a soft case and an aluminum case. The high quality optics come at an economical price and enjoy a No Fault Limited Lifetime Warranty.

Fobus Evolution Paddle Holster Right Hand Black Sig 226 Kydex SGE2 $27.99 Fobus Sig 226/220 Evolution Holster carries and protects your firearm and gives you the easiest access. The Fobus Evolution Sig 226 220 Handgun Holster features the proven Fobus Holster passive retention design. The gun holster includes a tension adjustment screw to allow the user to customize the ease of presentation and the security of retention. The new Fobus Evolution Holster series features one-piece Holster body construction. Like all Fobus holsters, the Evolution pistol holster series is lightweight and includes steel reinforced rivet attachment and a protective gun sight channel. The paddle holster style from Fobus also includes a rubberized insert to provide both comfort and stability. Available models of the Fobus Evolution Sig 226 / Sig 220 Holster include: Fobus Evolution Sig 220 / 226 Right Hand Paddle Holster SGE2 Fobus Evolution Sig 220 / 226 Right Hand Belt Holster SGE2BH Fobus Sig 220 / Sig 226 Evolution Right Hand Paddle Roto Holster SGE2RP Fobus Sig 220 / Sig 226 Evolution Right Hand Belt Roto Holster SGE2RB We offer a full selection of Fobus Holsters, including shoulder holsters, ankle holsters, and pistol holsters. For our complete line of holsters and holster accessories by Fobus on sale, please visit our Fobus page. For more Gun Holsters please visit our Holsters store section, where we have a wide selection of holsters to meet your needs. Whether it’s a Glock holster or a Walther holster, you’ll find it in our store at the best prices around. And if you can’t find it, you can call on our outstanding customer service to help you get it. Specifications for Fobus Evolution Holster Sig P220 / P226: Gun fits: Sig Sauer P220 Handgun, Sig Sauer P226 Handgun Hand: Right Series:Evolution Features of Fobus Sig 220 / 226 Holster Evolution: Choice of paddle or belt mounts Tension screw adjusts to your preference Steel reinforced attachmentProtective sight channel prevents wear on pistol optics Paddle models include rubberized insert for comfort Package C

Fobus Light or Laser Roto Paddle Holster Right Hand Black Glock 20,21,37 Kydex GLT21RP $49.99 Fobus Tactical Glock 21 20 37 RH Holster – Holds Light or Laser carries and protects your firearm and gives you quick access when you need it. The Fobus Glock 20 21 37 Tactical Handgun Holster is custom designed to fit the Glock pistol design with tactical accessories such as a laser scope or tactical light mounted under the barrel or on the trigger guard. The Holster features a unique positive retention system that utilizes a muzzle stud and a safety strap that encircles the trigger guard. An open withdrawal slot on the rear of the gun holster ensures ease of presentation. The Fobus Holster features one-piece holster body construction. Like all Fobus Holsters this Fobus Tactical Glock Pistol Holster is lightweight and includes steel reinforced rivet attachment and a protective gun sight channel. The paddle holster style from Fobus also includes a rubberized insert to provide both comfort and stability. Gun fits: Glock 21 Glock 20 and Glock 37 pistols with tactical accessory. Hand: Right Hand. Series: Tactical. Choice of paddle or belt mount. Accommodates tactical accessories. Secure retention by safety strap. Protective sight channel prevents wear on pistol optics. Rubberized paddle insert for comfort.

Giro Manifest Goggles 2012 $146.98 Giro Manifest Goggles 2012 – Picture yourself in The Manifest, an exceptional goggle crafted to enhance your winter environment. A medium to large sized adult frame utilizing Giro’s Super-Fit Engineering technology provides the best fit according to their database of facial measurements and rider input. This helmet compatible design also features super soft, tailored face foam with a micro fleece lining that seals out the elements and keeps your vision clear and sharp to focus on riding. The lens options available for the Manifest are reliable, spherical True Sight premium lenses which mimic the form of the human eye providing you with the highest quality lenses available. Taper correcting the lens, Giro minimizes prismatic distortion while providing superior optics. Plus the use of this technology increases the air volume inside the goggle which reduces fogging as well. The full range of performance-engineered lens tints and mirror coatings are protected by a durable hard coating that resists scratches and block 100% of harmful UV rays too. A second lens is included that can easily be swapped out using Giro’s patented Pop Top System to change lenses on the fly. It’s no illusion, the Manifest is clearly the right choice but you better get one today as they are sure to disappear quickly. . Race: No, Category: Adult, OTG: No, Comes w/ Case: No, Fog Fan: No, Frame Size: Large, Spherical Lens: Yes, Polarized: No, Photochromatic: No, Rubberized Strap: No, Helmet Compatible: Yes, Frame Size: Medium, Frame Size: Large, Lens Shape: Spherical, Lens Coating: n/a, Has Fan: No, Model Year: 2012, Product ID: 195571, Headphones Included: No

Giro Manifest Goggles 2012 $188.1 Picture yourself in The Manifest, an exceptional goggle crafted to enhance your winter environment. A medium to large sized adult frame utilizing Giro’s Super-Fit Engineering technology provides the best fit according to their database of facial measurements and rider input. This helmet compatible design also features super soft, tailored face foam with a micro fleece lining that seals out the elements and keeps your vision clear and sharp to focus on riding. The lens options available for the Manifest are reliable, spherical True Sight premium lenses which mimic the form of the human eye providing you with the highest quality lenses available. Taper correcting the lens, Giro minimizes prismatic distortion while providing superior optics. Plus the use of this technology increases the air volume inside the goggle which reduces fogging as well. The full range of performance-engineered lens tints and mirror coatings are protected by a durable hard coating that resists scratches and block 100% of harmful UV rays too. A second lens is included that can easily be swapped out using Giro’s patented Pop Top System to change lenses on the fly. It’s no illusion, the Manifest is clearly the right choice but you better get one today as they are sure to disappear quickly. Super Fit Engineered Adult Medium to Large Fit, Compatible with Most Helmets, Dual-Density Comfort Face Foam w/ Micro Fleece Lining, Includes 2 Bonus Lenses to Utilize Pop Top Interchangeable Feature, True-Sight Enhanced Dual Spherical Lenses, Race: No, Category: Adult, OTG: No, Comes w/ Case: No, Fog Fan: No, Frame Size: Large, Spherical Lens: Yes, Polarized: No, Photochromatic: No, Rubberized Strap: No, Helmet Compatible: Yes, Frame Size: Medium, Frame Size: Large, Lens Shape: Spherical, Lens Coating: n/a, Has Fan: No, Model Year: 2012, Product ID: 195571, Headphones Included: No

Giro Manifest Goggles 2012 $188.1 Picture yourself in The Manifest, an exceptional goggle crafted to enhance your winter environment. A medium to large sized adult frame utilizing Giro’s Super-Fit Engineering technology provides the best fit according to their database of facial measurements and rider input. This helmet compatible design also features super soft, tailored face foam with a micro fleece lining that seals out the elements and keeps your vision clear and sharp to focus on riding. The lens options available for the Manifest are reliable, spherical True Sight premium lenses which mimic the form of the human eye providing you with the highest quality lenses available. Taper correcting the lens, Giro minimizes prismatic distortion while providing superior optics. Plus the use of this technology increases the air volume inside the goggle which reduces fogging as well. The full range of performance-engineered lens tints and mirror coatings are protected by a durable hard coating that resists scratches and block 100% of harmful UV rays too. A second lens is included that can easily be swapped out using Giro’s patented Pop Top System to change lenses on the fly. It’s no illusion, the Manifest is clearly the right choice but you better get one today as they are sure to disappear quickly. Super Fit Engineered Adult Medium to Large Fit, Compatible with Most Helmets, Dual-Density Comfort Face Foam w/ Micro Fleece Lining, Includes 2 Bonus Lenses to Utilize Pop Top Interchangeable Feature, True-Sight Enhanced Dual Spherical Lenses, Race: No, Category: Adult, OTG: No, Comes w/ Case: No, Fog Fan: No, Frame Size: Large, Spherical Lens: Yes, Polarized: No, Photochromatic: No, Rubberized Strap: No, Helmet Compatible: Yes, Frame Size: Medium, Frame Size: Large, Lens Shape: Spherical, Lens Coating: n/a, Has Fan: No, Model Year: 2012, Product ID: 195571, Headphones Included: No

HP Cisco B22HP Fabric Extender $9549.12 The Cisco Fabric Extender for HP BladeSystem (Model B22HP) provides an extension of the Cisco Nexus switch fabric to the HP server edge. Logically, it behaves like a remote line card to a parent Cisco Nexus 5000 series switch, with the Fabric Extender and the parent Nexus together forming a distributed modular system. The Cisco Fabric Extender for HP BladeSystem forwards traffic to the parent Cisco Nexus switch over eight 10 Gigabit Ethernet uplinks. Low-cost uplink connections up to 10 meters can be made with copper Twin-ax cable, and longer connections up to 100 meters can use optional Fabric Extender Transceivers. Standard 10Gb SFP+ optics are also supported. Downlinks to each server are auto-negotiating and work with all HP Ethernet and CNA modules allowing a choice of Ethernet, FCoE or iSCSI connections. Passing all traffic seamlessly to the Nexus 5000 allows traffic to be shaped according to policies established by the Nexus 5000 Series Switch with a single point of management.

LaScala Optics Aida 3 x 25 Central Focusing Opera Glasses – LSA11 $39 Night Detective Quest 5 is a lightweight and compact night vision device designed for outdoor observations in low light or in complete darkness with the aid of a built-in infrared illuminator. Unique construction offers both esthetically pleasing look as well as protection against rain, snow, and dust. Controls are positioned on the top section of the device allowing easy accessibility and operation using only one hand. Hand strap comfortably secures the monocular ensuring precise navigation. Quest 5 is equipped with automatic light protection circuit, which disengages the power in the event of accidental exposure to intense light. Generation 1+ circuitry and 5x optical image magnification makes this device a perfect choice for a wide range of uses such as camping, hunting, boating and much more. Comes in its own protective carry pouch.

MagLite Mini Maglite AA Gift Box $17.88 Dont let its size deceive you. All the features that make the MagLite(r) the choice of police and firefighters can be found in the AA flashlight as well, especially the superior optics and custom reflector. The Mini MagLite(r) AA comes in a presentation box with textured surfaces.

MagLite Mini Maglite AA Gift Box $17.88 Dont let its size deceive you. All the features that make the MagLite(r) the choice of police and firefighters can be found in the AA flashlight as well, especially the superior optics and custom reflector. The Mini MagLite(r) AA comes in a presentation box with textured surfaces.

MagLite Mini Maglite AA Gift Box $17.88 Dont let its size deceive you. All the features that make the MagLite(r) the choice of police and firefighters can be found in the AA flashlight as well, especially the superior optics and custom reflector. The Mini MagLite(r) AA comes in a presentation box with textured surfaces.

Modern Classical Optics $107.09 Praised as ”one of the best new optics books seen for some time”, this book will provide a unique presentation of classical optics from the modern perspective. Written for advanced undergraduate students, the text stands out by its readability and stimulating discussions, close ties to experimental physics, and excellent choice of worked problem sets.

Nikon Sportstar 8203 10 x 25 Binocular – 10x 25 mm – Waterproof $64.99 The Sportstar is compact and lightweight, with an attractive two-tone, black and dark grey finish. Eco-Glass optics are free of lead and arsenic. The rubber coating provides a comfortable grip and multiple layers of anti-reflective compounds provide crisp, sharp viewing. The Sportstar series is an excellent choice for young and first time birders.

PENTAX SMCP-FA 21MM F3.2 BLK W/ ACC KIT $649.95 With newly developed, high-performance optics, this new lens measures only one inch (25 millimeters long) and weighs a mere 4.9 ounces (140 grams). Mounted on a PENTAX digital SLR camera body, the lens protrudes very little from the camera’s front panel, making it an ideal choice for carry-everywhere, instantaneous snapshot photography. This versatile angle of view produces natural images with a moderate perspective and an expanded depth of field (or a wide in-focus area), making it ideal for many different types of subjects and occasions, including snapshots, landscape, travel photos, and architecture. The DA 21mm incorporates a hybrid aspherical lens in its eighth optical element to effectively compensate for a variety of aberrations, which cause adverse effectson overall image quality. In order to assure high-quality image reproduction over the entire focusing range, it also features a floating mechanism, which is designed to adjust the degree of aberration compensation in relation to the focusing distance.

Pentax smc P-DA 21mm F3.2 AL Limited Wide Angle Lens – f/3.2 $569.26 With newly developed, high-performance optics, this new lens measures only one inch (25 millimeters long) and weighs a mere 4.9 ounces (140 grams). Mounted on a Pentax digital SLR camera body, the lens protrudes very little from the camera’s front panel, making it an ideal choice for carry-everywhere, instantaneous snapshot photography. This versatile angle of view produces natural images with a moderate perspective and an expanded depth of field (or a wide in-focus area), making it ideal for many different types of subjects and occasions, including snapshots, landscape, travel photos, and architecture. The DA 21mm incorporates a hybrid aspherical lens in its eighth optical element to effectively compensate for a variety of aberrations, which cause adverse effects on overall image quality. In order to assure high-quality image reproduction over the entire focusing range, it also features a floating mechanism, which is designed to adjust the degree of aberration compensation in relation to the focusing distance.

RMR Mount for 3.5x & 4x ACOG – RMR Mount $132.6 When precision is the only option your best option is the Trijicon RMR Sight. Built to provide optimum red-dot visibility against the target you can acquire and hit your target quickly and more accurately. The new Trijicon RMR (Ruggedized Miniature Reflex) has been introduced to match the legendary toughness of the Trijicon ACOG (Advanced Combat Optical Gunsight). It can be teamed up with the ACOG or AccuPoint for the ultimate in fast target acquisition or precise aiming at extended distances. The RMR offers two illumination configurations. One choice is an innovative LED (light emitting diode) insert that automatically adjusts for brightness in any lighting situation and ensures optimum visibility of dot against the target. The second option is a dual-illuminated battery-free model featuring Trijicon fiber optics and tritium. Accuracy is further enhanced with adjustments for windage and elevation and clarity is assured with the sight s ultra-clear hard-coated lens.

Raider 550 Laser Rangefinder – Raider 550 Laser Rangefinder $154.95 The Redfield Raider 550 Laser Rangefinder is an ideal choice for users who wants a ‘best in class’ rangefinder in an affordable price range. The Redfield Raider 550 Rangefinder offers an unmatched array of optical, mechanical and functional features that are commonly seen in more expensive rangefinders. These Redfield Raider 550 Range finders are nitrogen filled to make them waterproof, fog proof and shock proof. The Redfield Raider 550 Laser Rangefinder is covered by the Redfield Full Lifetime Warranty. All Redfield Rangefinders are built for unmatched performance and strength. Redfield is one of the leading brands of hunting optics, known for the accuracy, ruggedness and reliability of its products.

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