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 | Tamron SP AF 1.4x Pro Teleconverter for Canon Mount Lenses
A Teleconverter is a great way to extend the focal length of your lens. This Teleconverter will extend the focal length of your lens by 1.4x giving more magnification. The Tamron Pro series Teleconverter offer superior optical construction for improved image quality....
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 | Nikon TC-20E II (2.0x) Teleconverter AF-S for Nikon Digital SLR Cameras
2.0x AF Teleconverter for use with Nikon AF lenses for Nikon SLR cameras...
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 | Sigma 100-300mm f/4 EX DG IF HSM APO Fast Aperture Telephoto Zoom Lens for Nikon Digital SLR Cameras
This telephoto zoom lens provides a large F4 aperture at all focal lengths. The new multi layer lens coating and lens design reduce flare and ghosting while maintains minimal light-fall-off; superior peripheral brightness is ensured. New multi layer coating of this lens gives superb color performance while cutting down flare and ghosting caused by reflections from the digital image sensor. High optical performance is demonstrated t...
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 | Sigma 150mm f/2.8 EX DG HSM APO HSM IF Macro Lens for Canon SLR Cameras
Super Multi Coating reduces flare and ghosting that tends to occur when using digital SLR cameras. Super compact and lightweight, this large aperture telephoto lens features life-size macro capability....
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 | Sigma 8mm f/3.5 EX DG Circular Fisheye Lens for Canon SLR Cameras
This circular fisheye lens produces circular images with an angle of view of 180? when attached to a full-frame digital SLR or 35mm film SLR camera. It has a fast maximum aperture of F3.5 and a minimum focusing distance of 13.5cm (5.3"). Sigma's super multi-layer coating and Special Low Dispersion (SLD) glass provide excellent image quality for digital and film SLR cameras. The special fisheye design allows maximum creative express...
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 | Opteka HD² 0.20X Professional Super AF Fisheye Lens for Nikon AF SLR
Nothing changes the way you see the world like High Definition², and no company does High Definition² like Opteka. In the professional setting, Opteka's glass optics define High Definition. Change the way you view the world. Enjoy outstanding detail, enjoy enhanced clarity, enjoy Opteka.
The new Opteka High Definition² .20x Wide Angle Fisheye Converter Lens increases the versatility of your existing lens to provide breath...
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 | Sigma APO Teleconverter 2x EX DG for Canon Mount Lenses
This dedicated APO teleconverter can be mounted between select lenses and the camera body to increase the focal length by the power of 2. It is compatible with the lens autofocus function, depending on the open-aperture F value of the lens being used, and they work with the AE (Automatic Exposure) function, dispensing with complicated exposure calculations. It also offers maximum photography magnification by 2x, without any variati...
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 | Olympus 8mm f/3.5 Zuiko Fisheye Lens for Olympus Digital SLR Cameras
The Zuiko Digital ultra-wide fisheye lens helps you master light more effectively, even while providing an extreme 180-degree angle of view. Built from the ground up for digital photography, it channels more light to the image sensor for outstanding edge-to-edge results.This pristine glass lens delivers light directly to each of the imager's pixels. From center to edge, each image is filled with rich, accurate color, high contrast ...
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 | Opteka 500-1000mm High Definition Mirror Telephoto Lens for Panasonic G1, GH1, Olympus PEN E-P1, E-P2, and other Micro Four Thirds Cameras
The Opteka 500mm mirror lens is incredibly compact and lightweight (Opteka 500mm with 2X Multiplier). Using an advanced reflex design, this is a mirror lens that is ideally suited for wildlife and sports photography. It has a fixed aperture of f8. It comes complete with a soft pouch and three (3) rear mounted, 30.5mm filters, (ND-2X, ND-4X & Skylight). Opteka mirror lenses incorporates advanced computer designed optics and the late...
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 | Sigma 20mm f/1.8 EX DG RF Aspherical Wide Angle Lens for Canon Digital SLR Cameras
This super-wide-angle lens is ensured minimal light-fall-off with superior peripheral brightness. The iris diaphragm has 9 diaphragm blades to obtain beautiful out of focus images in the foreground and background. This is an ideal DG lens optimized Digital SLR camera.The minimum focusing distance of this lens is 20cm (7.9 inch) and it has maximum magnification of 1: 4 with fast F 1.8 maximum aperture. The minimum focusing distance ...
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