Lens Hood, Front & Rear Lens Caps, Pouch Case, 1 Year International Warranty plus 3 Year Sigma U.S.A. Extended Warranty (Total Warranty is 4 Years from Date of Purchase).Sigma 20mm f1.8 EX DG Aspherical RF is one of several EX Series lenses. It is the first 20mm Super wide-angle lens in the world with a large aperture of F1.8 and angle of view 94.5°. It has Macro focusing capability with a minimum focusing distance of 20cm/7.9inches (reproduction ratio 1:4). The iris diaphragm has 9 diaphragm blades to obtain beautiful out of focus image. It incorporates an aspherical lens element in the front as well as rear lens groups, to minimize distortion, spherical aberration and astigmatism. The lens has non-vignetting optical construction, in order to obtain adequate peripheral brightness with... Less

The dedicated APO teleconverter can be mounted between select lenses and the camera body to increase the focal length by the power of 2.0x. The new multi layer coating reduces flare and ghost, which is a common problem with digital cameras. They demonstrate best performance with DG series lenses. They also offer maximum photography magnification by 2.0 x, without any variation in the minimum focusing distance. Compact and lightweight, these teleconverter convert your lenses into longer focal-length lenses, so you don't have to do a lot of unnecessary footwork.

Lens Hood, Front & Rear Lens Caps, Pouch Case, 1 Year International Warranty plus 3 Year Sigma U.S.A. Extended Warranty (Total Warranty is 4 Years from Date of Purchase). Features minimum focusing, down to 20cm/7.9inches (reproduction ratio 1:2.9). The iris diaphragm has 9 diaphragm blades to obtain beautiful out of focus image. It incorporates the floating focus system and the use of two aspherical lens elements to minimize distortion, spherical aberration and astigmatism. The lens incorporates minimum vignetting optical construction in order to obtain adequate peripheral brightness with open aperture. Internal focus system of the lens eliminates front lens rotation, thus allowing the use of a Perfect Hood and easy use of polarizing filters. The lens also incorporates a dual-focus... Less

Petal Lens Hood, Front & Rear Lens Caps, Carry Case with Strap, Step Down Ring, TS-31 Tripod Socket, 1 Year International Warranty plus 2 Year Sigma U.S.A. Extended Warranty (Total Warranty is 3 Years from Date of Purchase) Tiffen 86mm UV Glass Filter - Lens Cap Leash - Professional Lens Cleaning Kit.New Sigma APO 50-500mm F4.5-6.3 DG OS HSM. This 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. Four SLD (Special Low Dispersion) glass elements provide excellent correction of color aberration. The Super Multi-Layer... Less

You are looking at a HIGH RESOLUTION TEST CHART for Sigma 20mm F1.8 EX DG Aspherical RF; Wideangle prime lens for Canon EF, Nikon F (FX), Pentax KAF, Sony Alpha, Sigma SA. This chart is 9 X 12 inches in size. It is printed in USA on a heavy, high quality paper stock. We all want to trust our gear and make sure it works properly every time. This test chart is designed to test your optics and electronic still picture cameras. The chart is printed on a very heavy 16pt cover matt paper by a reputable American printing company. This paper is absolutely suitable for a long term use. 99% of Ink Jets don't produce sharp carved outlines! That is why I use CUSTOM MADE VECTOR GRAPHICS MASTERS for printing. Creating vector graphics can be laborious but IT IS THE ONLY WAY to get ULTRA HIGH RESOLUTION... Less

Sigma APO 120-300mm F2.8 EX DG OS HSM (136-101) boasts Optical Stabilization (OS) which is critical to equipment sporting this focal range allowing for hand-held tele-photography and the use of shutter speeds approximately 4 stops slower than would otherwise be possible. Its includes splash-proof feature preventing dust and precipitation from getting inside the lens. One SLD and two FLD glass elements provides maximum correction of chromatic aberrations.The super multi-layer coating reduces flare and ghosting and the lens design incorporates an inner focusing and inner zooming system to ensure sharp images throughout the entire zoom range. Improved optical performance provides excellent correction of sagittal coma flare and ensures ultra-high resolution, comparable to a fixed focal length... Less

Lens Hood - 1 Year International Warranty plus 3 Year Sigma U.S.A. Extended Warranty (Total Warranty is 4 Years from Date of Purchase). Sigma's New APO 70-200mm F2.8 EX DG OS HSM is the second generation of this large aperture telephoto zoom lens now incorporating Sigma's Optical Stablization function, OS, Sigma's own anti-shake system. Two FLD glass elements, which have the performance equal to fluorite glass have also been added along with three SLD glass elements, all which provide excellent correction of color aberration. In spite of the additions of all of these features, Sigma has managed to make the lens more compact than its predecessor, measuring only 7.8" in length. For any serious photographer where the 70-200mm focal range is often the most important second lens to own after... Less

Lens Hood, Front & Rear Lens Caps, Pouch Case, 1 Year International Warranty plus 3 Year Sigma U.S.A. Extended Warranty (Total Warranty is 4 Years from Date of Purchase) Tiffen 72mm Photo Essentials Filter Kit (Ultra Violet.Circular Polarizer,& Warming Filter) - Lens Cap Leash - Professional Lens Cleaning Kit.