This compact high-performance telephoto zoom lens incorporates Sigma’s own Optical Stabilizer function. The lens incorporates SLD (Special Low Dispersion) glass in the front lens groups and is equipped with an inner focusing system to provide high image quality throughout the entire zoom range. The incorporation of HSM (Hyper-Sonic Motor) ensures quiet and high-speed auto focus. The OS (Optical Stabilizer) function effectively eliminates the effects of camera shake so subjects can be easily and clearly seen in the viewfinder as well as in the image. It allows the use of shutter speeds up to 4 stops slower than normal for steady, handheld photography. For Sony and Pentax mounts the built-in OS System allows the photographer to see the stabilized image in the viewfinder and can be used as an alternative with cameras having built-in image stabilization. The Super Multi-Layer Coating reduces flare and ghosting and provides high contrast images throughout the entire zoom range. This lens has a minimum focusing distance of 43.3inches (110cm) throughout the entire zoom range and a maximum magnification ratio of 1:4.5. An inner focusing system eliminates front lens rotation, making it suitable for use with circular polarizing filters. more info

The Original Post is Located Here: Sigma 50200mm f/4.05.6 DC IF SLD Optical Stabilized

To accompany the release of the E-3 professional D-SLR, Olympus is expanding its range of ZUIKO DIGITAL lenses, which are compatible with all Four Thirds System-based camera bodies. Among the new lenses are the astounding ZUIKO DIGITAL SWD (Supersonic Wave Drive) models which boast the worlds fastest autofocus speeds and represent a new benchmark for professional versatility and performance.istance of 90cm throughout the zoom range. more info

The Original Post is Located Here: Olympus Zuiko 50200mm f/2.83.5 Digital ED SWD Lens

This compact high-performance telephoto zoom lens incorporates Sigma’s own Optical Stabilizer function. The lens incorporates SLD (Special Low Dispersion) glass in the front lens groups and is equipped with an inner focusing system to provide high image quality throughout the entire zoom range. The incorporation of HSM (Hyper-Sonic Motor) ensures quiet and high-speed auto focus. The OS (Optical Stabilizer) function effectively eliminates the effects of camera shake so subjects can be easily and clearly seen in the viewfinder as well as in the image. It allows the use of shutter speeds up to 4 stops slower than normal for steady, handheld photography. For Sony and Pentax mounts the built-in OS System allows the photographer to see the stabilized image in the viewfinder and can be used as an alternative with cameras having built-in image stabilization. The Super Multi-Layer Coating reduces flare and ghosting and provides high contrast images throughout the entire zoom range. This lens has a minimum focusing distance of 43.3inches (110cm) throughout the entire zoom range and a maximum magnification ratio of 1:4.5. An inner focusing system eliminates front lens rotation, making it suitable for use with circular polarizing filters. more info

The Original Post is Located Here: Sigma 50200mm f/4.05.6 DC IF SLD Optical Stabilized

Fits Pentax Digital SLR Camera models / Fully Automatic Diaphragm / Compact Size / Includes Lens Hood / Accepts 52mm Filters Metering System - TTL open-aperture metering Minimum Focusing - 3.61 feet Filter Diameter - 52mm Maximum Magnification - 0.24 Maximum Diameter - 2.6 inches (66.5mm) Maximum Length - 3.1 inches (78.5mm) Weight (w/o Hood) - 9.2 oz. (260g) Hood - PH-RBB52 Equivalent focal length to 75mm-300mm in the 35mm format Compact dimensions with minimal aberrations Responsive Quick-Shift Focus System allows instant shift from AF to MF The image circle is designed to match the CCD used in PENTAX digital SLRs Comes with a lens hood to minimize flare and ghost images more info

The Original Post is Located Here: Pentax DA 50200mm f/45.6 ED Lens for Pentax