High-performance Carl Zeiss large-aperture zoom. The SAL-2470Z Carl Zeiss Vario-Sonnar f2.8 24-70mm Zoom Lens is a brilliant all-around performer -- with SSM (Super Sonic wave Motor) design for fast, silent auto-focus, pro-quality Carl Zeiss T coated optics to reduce lens flare, and 17-element design with two aspherical and two ED glass lens elements to minimize distortion and virtually eliminate chromatic aberration. It benefits from the Super SteadyShot(R) image stabilization built into every Sony a system DSLR -- and its wide-angle to medium telephoto range in compact, lightweight design is ideal for a wide range of shooting applications (35mm equivalent: 36-105mm). Distance Scale - Yes Distance Encoder - Yes Aperture (Max.) - f/2.8 Aperture (Min.) - f/22 - 29 Aspheric Elements - 2 aspheric Lens Type - Standard Zoom Approximate Unit Dimensions - 3.25 x 4.37 Approximate Unit Weight - 16 ounce

View Sony 24 -70mm f/2.8 Carl Zeiss Vario Sonnar T Zoom Lens for Sony Alpha Digital SLR Cameras details

The SP AF70-200mm F/2.8 zoom lens features a versatile MFD of just 37.4" over the entire zoom range, best-in-class maximum macro magnification ratio of 1:3.1 at f=200mm, and an advantageous internal focusing (IF) system that allow stress-free photography. The new tele-zoom lens covers a desirable focal length range of 70mm medium telephoto to 200mm telephoto when mounted on full-size format SLR cameras and a focal length range from 109mm to 310mm ultra telephoto when mounted on a DSLR camera with an APS-C sized imager. Diameter 3.5 x Length 7.6 (89.5x194.3mm) Weight - 40.6 ounces (1150 grams) without tripod mount

View Tamron AF 70-200mm f/2.8 Di LD IF Macro Lens for Canon Digital SLR Cameras details

Compact L-series telephoto lens with an Image Stabilizer, which compensates for camera shake with the equivalent effect of a shutter speed two stops faster. Two Image Stabilizer modes are provided: Stabilizer Mode 1 (the same mode featured on the EF 75-300mm f/4-5.6 IS USM) and the new Stabilizer Mode 2, which steadies the image during horizontal or vertical panning. Mode 2 detects the panning direction automatically. The closest focusing distance is 4.9 feet (1.5 m).

View Canon EF 300mm f/4L IS USM Telephoto Lens for Canon SLR Cameras details

This high zoom ratio lens is exclusively designed for Canon 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 overall length of the lens does not change during focusing, ensuring convenient handling and ease of use. A zoom lock switch eliminates 'zoom creep' during transportation, a convenient addition when traveling Minimum focusing distance of 45cm (17.7) at all focal lengths Dimensions - D - 2.8 x L - 3.1 Weight - 14.3oz

View Sigma 18-200mm f/3.5-6.3 DC Lens for Canon Digital SLR Cameras details

Wide-Angle Zoom Lens from UltraWide to Wide Angle / F2.8 Maximum Aperture

View Nikon 17-35mm f/2.8D ED-IF AF-S Zoom Nikkor Lens for Nikon Digital SLR Cameras details

EOS users looking for an all-purpose lens would do well to select the Canon EF 28-200 f/3.5-5.6 USM. The minimum aperture setting is f/22 at a focal length of 28mm, and the EF 28-200 has a minimum focus distance of 17.7 inches at any focal length. An inner focus ring allows the EF 28-200 to focus without rotating the outer half of the lens barrel, which is great for photographers who utilize filters. The autofocus uses Canon's micro USM drive for smooth and quiet operation.

View Canon EF 28-200mm f/3.5-5.6 USM Standard Zoom Lens for Canon SLR Cameras details

Maintaining the high performance of the previous model, Tamron's new 28-300mm zoom lens now features our "Di" design, making it the ideal lens for use with both digital and film cameras. The "Di" design is achieved by applying a new optical design to its coated surfaces, and by further enhancing our already stringent quality control system. Whether you shoot film or digital, the lens provides high image quality for both platforms. When used with APS-C size digital SLR cameras, the lens provides an angle of view equivalent to approximately 44-465mm, covering the standard to ultra telephoto range with no sacrifice of quality or aperture range.

View Tamron AF 28-300mm f/3.5-6.3 XR Di LD Aspherical (IF) Macro Ultra Zoom Lens for Canon Digital SLR Cameras details