I recently acquired this lens, but I cannot figure out the exact mount on the lens, does anyone know? I was told by the seller that it was for a Nikon camera. However, this mount looks nothing like the Nikon mount with the Rabbit ears.
I believe this is an Olympus OM mount lens. The lens release button and aperture stop-down button opposing each other are a dead giveaway. Also, unless I'm mistaken, the engraved lettering in the first picture says something like "for O/OM"... ?