The Pentax-110 50mm f/2.8 Lens is intended for Pentax 110 SLR cameras (110 film with a 13x17 mm frame was used) It has no aperture, as it is built into...
The 30mm F-Distagon C f/3.5 is a fish-eye lens with and ultrawide 180 degree angle of view. It is the only lens in the entire Hasselblad system which produces obvious...