The 85mm f/2.8 Alpha A-Mount Standard Prime Lens is a full-frame lens with a fast f/2.8 wide-open aperture, along with the 7-blade circular diaphragm that allows you to work in low light and produce a beautiful soft background effect. With a minimum focus distance of 23.6" (0.6m) the lens allows you to get in close to your subject, while the internal Smooth Autofocus Motor (SAM) ensures smooth and fast autofocus operation. In addition the focus mode switch allows you to quickly switch between autofocus and manual.
APS-C Focal Length: 127.5mm
This lens has an 85mm focal length. When attached to APS-C format cameras, it has a comparable focal length of 127.5mm.
Aperture Range: f/2.8-22
With a maximum aperture of f/2.8, and minimum aperture of f/32, the quality of this lens means you can capture faster shutter speeds, and a shallower depth of field, than lenses with higher maximum apertures.
For Alpha 35mm or APS-C Format and Minolta DSLRs
A-mount lens optimized for Sony Alpha cameras
Smooth Autofocus Motor (SAM)
Designed for fast, smooth and silent automatic focusing, Sony's unique Smooth Autofocus Motor (SAM) technology achieves high torque at low speed with rapid start/stop response. The AF control signals from the camera body are sent to the lens-mounted SAM unit, which drives the lens directly, helping to assure quick and accurate AF response.
7x Circular Aperture Blades
Circular aperture blades produce smooth, rounded bokeh background effects when capturing spot-light sources in your pictures. Because the aperture blades form a near circle at the wide openings used for low-light shots, spot-light sources have a pleasing circular defocused effect.
Filter Diameter: 55mm
The 55mm from filter thread does not rotate, allowing rotating polarizing filters to be used.
Focus Mode Switch
This lens is made with a Focus Mode switch which offer better focus control whenever you need it. Switch between auto or manual focusing for faster response and AF precision.