Sigma

This ultra telephoto zoom lens offers a fast aperture of F2.8 at the 500mm focal length and F5.6 at the 1000mm. It covers widely used focal lengths from 200mm to 500mm and has a large aperture of F2.8 throughout the entire zoom range. This lens can be used to create amazing image expression with various types of photography such as astrophotography, portraits, wildlife, sports. SLD (Special Low Dispersion) glass and three ELD (Extraordinary Low Dispersion) glass elements provide excellent correction for all type of aberrations. The super multi-layer coating reduces flare and ghosting and provides high image quality from the extremely large aperture. The lens hood, designed exclusively for this lens, blocks out extraneous light. A 72mm filter can be inserted at the rear of the lens, and a circular polarizing filter can be used in situ thanks to the ingenious internal rotation mechanism. The dedicated Li-ion battery BP-21 is used to power the zooming and AF operation. This battery is built in the lens barrel. For the convenience of the photographer, focusing distances and focal lengths can be viewed on the lens` built-in LCD panel.

And it looks like a bazooka!

This high zoom ratio lens is exclusively designed for digital SLR cameras and capable of covering a wide range of focal lengths from wide-angle to telephoto. Two Special Low Dispersion (SLD) glass elements and two hybrid aspherical lenses offer the utmost correction for all types of aberrations, and enables this extended range super zoom lens to be housed in a compact and lightweight construction of 70mm (2.8") diameter, and 78.1mm (3.1") in length, and weighing just 405g/14.3oz. The new lens coating reduces flare and ghost, which is a common problem of digital cameras and also creates an optimum color balance. This lens has a minimum focusing distance of 45cm (17.7") at all focal lengths and has maximum magnification of 1:4.4.The lens design incorporates an inner focusing system, which prevents the front of the lens from rotating, making it particularly suitable for using circular polarizing filters and petal shaped lens hoods.

The Sigma APO 70-300mm f4-5.6 DG Macro Lens for Canon Digital SLR Cameras is a telephoto zoom lens with tele-macro functionality. Optimized for digital cameras, this high-performance lens has two Special Low Dispersion (SLD) glass elements in the front lens group and one in the rear lens group. It is able to shoot with maximum magnification 1:2 at the focal length of 300 millimeters. It's the ideal lens for portraits, sports photography, nature photography, and other types of photography that frequently use the telephoto range.

This is a telephoto zoom lens with excellent cost performance. It is capable of macro photography with a 1:2 maximum close-up magnification at the 300 mm focal length. It's the ideal high performance lens for portraits, sports photography, nature photography, and other types of photography that frequently use the telephoto range.SIGMA used SLD (Special Low Dispersion) glass in this lens for excellent correction of chromatic aberration. Also, SIGMA effectively corrected for fluctuation of aberration due to focusing.It is capable of macro photography with a 1:2 maximum close-up magnification at the 300mm focal length. The minimum focusing distance is 1.5 m/59 inches at all zoom settings. It also has a switch for changeover to macro photography at focal lengths between 200mm and 300mm with a maximum close-up magnification from 1:2.9 to 1:2. Without changing the distance between camera and subject, you can change the shooting magnification.

This compact telephoto zoom lens was exclusively designed for use with digital SLR cameras. The image circle was designed to match the size of the image sensors of digital SLR cameras that also allows compact body and lightweight with overall length of 84.6mm (3.3in.), and weight of only 310g/10.9 ounces. It has a filter size of 55mm, maximum diameter of 70mm (2.7in.). This remarkably compact high performance zoom lens is ideally suited to a wide range of subjects. This lens has a minimum focusing distance of 110cm (43.3in.) and maximum magnification of 1:4.

Digital cameras having image sensors larger than APS-C size, and 35mm cameras, should not be used with these lenses. If such cameras are used, severe vignetting in the images may result. The angle of view varies depending on the camera the lens is mounted on.

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? (154?for 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 Motor) ensures fast and quiet autofocusing and allows full-time manual focus override by rotation of the focus ring.

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 expression.This circular fisheye lens produces circular images with an angle of view of 180?and also incorporates an auto focus system to achieve accurate focusing that might be difficult through the camera's viewfinder due to the extremely large depth of field. This lens is perfectly suited for low light conditions indoors or at dusk.This circular fisheye lens has a minimum focusing distance of 13.5cm (5.3") and a maximum magnification of 1: 4.6 making it particularly useful for close-up photography.

Designed as a quick-focusing macro lens the AF speed of 50mm, f2.8 EX Macro is 1.4 times faster than previous 50mm f2.8 macros. It features a non-rotating front lens group which makes it easier to work with polarizing filters and has a focus limiter (eg. Full Range; - 9.8 in.; 9.1 in. - 7.4 in.).

This large aperture 30mm F1.4 EX DC HSM lens is designed to match the APS-C size image sensors of digital SLR cameras. Two SLD glass elements are especially effective in the compensation of magnification chromatic aberration. Glass mold aspherical lens at rear group of lens reduces color aberration and provides high-quality image results. From 40cm (15.7 inch) minimum focusing distance to infinity, this lens creates very sharp images with high contrast. The HSM models provide quiet high-speed auto-focus shooting, as well as full-time manual focus. Large Maximum Aperture of F1.4 can perform superbly in a great range of applications, including snapshots, portrait, indoor shooting and landscape photography.

The Sigma 15mm f2.8 EX DG Diagonal Fisheye Lens for Canon Digital SLR Cameras is a digitally optimized diagonal fisheye auto-focus lens. It is equipped with the latest in multi-layer coating technology that reduces both flare and ghosting. By taking advantage of both the distortion specific to fisheye lenses and the minimum shooting distance of 5.9 inches, the photographer can shoot error-free creative images.

By offering a 180 degree field of view, 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.The minimum shooting distance and large depth of field allow close up photography that covers the objects surrounding the photographic subject. The lens is supplied with a gelatin filter holder at the rear, allowing the use of gelatin filters.

The Sigma 105mm f2.8 EX Macro delivers superb, distortion-free images throughout its broad focus range, from infinity telephoto to 1: 1 (life-size) macro, as close as 12.3" without accessories. Its non-rotating front lens group makes it easier to work with polarizing filters and has a focus limiter.A "focus-free" mechanical design allows the lens to auto focus without any interference from the manual focus ring. This makes it easier to hold the lens without affecting the speed or normal operation of the autofocus function. Rugged mechanical construction also makes it durable enough for even the heaviest use required by professional photographers.The Sigma 105mm f2.8 EX Macro features the new deluxe external EX finish. These features and other Sigma optical advances, including an uncommonly broad range of focus, make this an ideal lens for a wide variety of applications, from nature photography to portraits.

The "Sigma Bigma"