Format: 35mm SLR
Type: Prime lens
Focusing: Manual Focus (MF)
Lens mounts: M42
The Sigma MC Mini-Wide II 28 mm f/ 2.8 is a wide-angle fast prime lens with a proprietary multi-coating for 35 mm SLR non-autofocus cameras popular in the 1970-80s.
The Mini-Wide II lens for the Pentax K bayonet mount has contacts on the bayonet, i.e. the lens belongs to the A-series – aperture is controlled from the camera.
You should not confuse it with the Mini-Wide version, which does not have contacts.
The lens casing is all-metal.
The mechanism of the aperture ring has half-stops markings.
Macro scale: 1:4.5