This auto focus circular fisheye lens has an angle of view of 180 degrees in all directions. It is exclusively designed for digital SLR cameras with the APS-C size image sensor. When used in conjunction with digital SLRs with APS-C size image sensors, it produces circular image within the frame. The F2.8 large aperture value produces a bright image in the viewfinder and allows photographers to take pictures in low light conditions, making it an ideal lens for Astrophotography and Aurora photography. Due to the quantifiable angle/area relationship it produces, this lens can be used for scientific and arts applications such as solid angle measurements of cloud distribution over the sky or vegetation distribution of the forest. The minimum focusing distance of 13.5cm/5.3inch and maximum... Less

This auto focus circular fisheye lens has an angle of view of 180 degrees in all directions. It is exclusively designed for digital SLR cameras with the APS-C size image sensor. When used in conjunction with digital SLRs with APS-C size image sensors, it produces circular image within the frame. The F2.8 large aperture value produces a bright image in the viewfinder and allows photographers to take pictures in low light conditions, making it an ideal lens for Astrophotography and Aurora photography. Due to the quantifiable angle/area relationship it produces, this lens can be used for scientific and arts applications such as solid angle measurements of cloud distribution over the sky or vegetation distribution of the forest. The minimum focusing distance of 13.5cm/5.3inch and maximum... Less

Sigma's 10mm F2.8 EX DC Fisheye HSM lens is a diagonal fisheye which means the distorted scene is shown full frame within the camera's field of view. It allows photographers to shoot creative images by taking advantage of the acute perspectives that are invisible to the human eye. The diagonal fisheye is the most popular kind of fisheye and are often used by wedding photographers who want to give an "artistic" looks to images, by underwater photographers who want to take in the maximum field of view possible and by scenic photographers. The minimum focusing distance of 5.3 inches and magnification ratio of 1 to 3.3 allows the photographer to have fun with placement of subjects extremely near to the camera with distorted backgrounds. In the hands of an artist this lens can produce... Less

By taking advantage of both the distortion aberration, specific to fisheye lenses and the minimum shooting distance of 15 cm (5.9 inches), the photographer can shoot creative images. Flare and Ghosting This digitally optimized diagonal fisheye lens is equipped with a new multi-layer coating technology that reduces both flare and ghosting. This also ensures an accurate color balance and high definition results. Fisheye Lens Characteristic enables photographers to experience new image expression possibilities 180 degree field of view of this fisheye lens can be used to create amazing image expressions that cannot be seen with the human eye, such as exaggerated perspective and distortion. Minimum Shooting Distance of 15cm (5.9in.) The minimum shooting distance of this lens is only 15cm(5.9... Less

This digitally optimized diagonal fisheye lens is equipped with a new multi-layer coating technology that reduces both flare and ghosting. By taking advantage of both the distortion aberration, specific to fisheye lenses and the minimum shooting distance of 15 cm (5.9 inches), the photographer can shoot creative images.   Specifi cations: Lens Construction: 7 Elements in 6 Groups Angle of View: 180 degrees Number of Diaphragm Blades:  7 Blades Minimum Aperture: F22 Minimum Focusing Distance:  15cm/5 .9 in. Maximum Magnification:  1 :3.8 Filter Size:  Rear (Gelatin filter)  Dimensions:  Diam eter 73.5mm X Length 65mm, 2.9 in. X 2.6 in. Weight:  370g/13. 0 oz.  Mount: CANON EOS

This autofocus fisheye lens is designed for use with digital SLR cameras equipped with APS-C size image sensors. The Nikon version produces a diagonal angle of view of 180 (154for Sigma, 167 for Canon). The diagonal field of view of this fisheye lens produces striking images with exaggerated perspective and distortion. The minimum focusing distance of 13.5cm/5.3inch, and maximum magnification 1:3.3 allows subjects to be as close as 1.8cm/0.7inch from the lens' front element. This close focusing capability allows close-up photography and also it is possible to make use of large depth of field that covers wide range of subjects. The Integral hood blocks out extraneous light and the Super Multi-Layer Coating minimizes flare and ghosting, creating superior image quality. The HSM (Hyper Sonic... Less

The Sigma APO 50-500mm F4.5-6.3 DG OS HSM is a 10x high zoom ratio ultra telephoto zoom lens incorporating Sigma's original Optical Stabilizer function. This lens covers a wide range of focal lengths from 50mm to 500mm ultra telephoto. The OS (Optical Stabilizer) function offers the use of shutter speeds approximately 4 stops slower than would otherwise be possible. As compensation for camera shake is visible in the view finder, the photographer can easily check for accurate focus and ensure there is no subject movement. Four SLD (Special Low Dispersion) glass elements provide excellent correction of color aberration. The Super Multi-Layer Coating reduces flare and ghost and ensures high image quality throughout the entire zoom range. This lens has a maximum magnification ratio of 1:3.1... Less

Sigma 8mm f/3.5 EX DG Circular Fisheye Autofocus Lens for Nikon AFType: Wide Angle LensFocus Type: Auto FocusDiameter: No SpecificationComp atibility: For NikonFeatures: Auto-focus system F3.5 maximum aperture Close-up Photography Excellent optical performance Reduction of flare and ghosting An ideal lens for scientific applications Gelatin Filter Holder Lens Construction: 11 Elements in 6 Groups Angle of View: 180 degrees Number of Diaphragm Blades: 6 Blades Minimum Aperture: F22 Minimum Focusing Distance: 13.5cm/5.3 in. Maximum Magnification: 1:4.6 Filter Size: Rear (Gelatin

10-20mm F4-5.6 EX DC HSM lens allows enjoyment of super wide-angle photography and it is a very powerful tool for indoor shooting and landscape photography Wide angle of view (102.4° at 10mm and 63.8° at 20mm) offers the photographer greater freedom of expression. These are special DC Series Lenses designed so that the image circle matches the smaller size of the image sensor of most digital SLR cameras. Their specialized design gives these lenses the ideal properties for digital cameras, the compact and lightweight construction is an added bonus! Three SLD glass elements are employed for effective compensation of color aberration, which is a common problem with super-wide angle lenses. One piece of glass mold and two hybrid aspherical lenses, offer excellent correction for distortion,... Less

This digitally optimized diagonal fisheye lens is equipped with a new multi-layer coating technology that reduces both flare and ghosting. This also ensures an accurate color balance and high definition results. With a minimum shooting distance of only 15cm (5.9 inch), this lens has a maximum magnification of 1:3.8. The close focusing capability together with a large depth of field allow close up photography that covers objects surrounding the photographic subject. This lens is supplied with a gelatin filter holder at the rear, and a fitted padded case.