Superb Sharpness in Available Light: In conjunction with the Super SteadyShot® image stabilization system of the Sony® α (alpha) DSLR-A100 camera, this lens achieve pinpoint sharpness even working with hand-held camera by available light.

Bright f1.4 Aperture: The ability to capture more light in dark environments gives you a superb lens for hand-held shooting without flash, to preserve the mood or in locations where flash is not permitted.

Circular Aperture: Conventional lenses close their apertures with blades that can create multi-sided shapes -- but the aperture blades of this superb wide-angle lens form a near circle at the wide openings you’ll use for low-light shots, so spot-light sources have a pleasing circular defocused effect.