This Vivitar MC Wide Angle 28mm 2.8 was purchased as a replacement for a busted OM Zuiko lens, 28/2.8, in 1993. It has therefore an OM mount, and is working flawlessly as a replacement. So well, that in fact I never bought a Zuiko in this focal length, using this one for my wide shots. It is usually to be found on my OM1, together with its original prime, the 50/1.8.
