Superb Sharpness at Fully Open Aperture : In conjunction with the Super SteadyShot image stabilization system of the Sony (alpha) DSLR-A100 camera, this superb Carl Zeiss lens achieves pinpoint sharpness -- even working with hand-held camera by available light.
Excellent Contrast Reproduction : Precision optical design and advanced T coatings help to reduce flare and increase contrast.
Smooth Backgrounds : Smooth, visually pleasing out-of-focus backgrounds give portraits and close-ups an extra dimension of beauty.
Focus Hold Button : For full creative control, a focus hold button located on the lens can lock auto-focusing even in continuous advance mode -- and focus lock can also be set on the spot-focus center frame area.
Auto Clutch : In auto-focus mode, the manual focus ring does not rotate -- and in manual focusing, you?ll have a solid, hands-on feel.