Sony 135mm F2.8 (T4.5) STF Overview

Announced Jun 5, 2006 •
Telephoto prime lens | Sony/Minolta Alpha | SAL135F28
Product description
Announced Jun 5, 2006

The Sony 135mm F2.8 (T4.5) STF is a unique medium telephoto prime lens, designed for use on Sony's full-frame and APS-C format SLT cameras. The 'STF' in its name stands for Smooth Transition Focus, and refers to the incorporation of an 'apodization optical element' that distributes light rays in a way specifically designed to create smooth, aesthetically pleasing out-of-focus areas. This beautifully-engineered lens is manual focus only. For more versatility (at a higher cost) you should also consider its cousin the 135mm F1.8 ZA Carl Zeiss Sonnar T*, which offers AF, and brighter maximum aperture.

Quick specs
Lens type Prime lens
Focal length 135 mm
Image stab. No
Lens mount Sony/Minolta Alpha
Max aperture F2.8
Min aperture F31
Min focus 0.87 m (34.25)
Max magnification 0.25×
Weight 730 g (1.61 lb)
Length 99 mm (3.9)

See full specifications