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.