Canon EF 8-15mm f4L USM Fisheye Zoom lens mount_Olympus Pen 5's "full frame") but you

5's "full frame") but you get 36 frames instead of 16

with its boxy proportions and leatherette

This metal-bodied Cosina Voigtlander 21/25mm viewfinder is in excellent cosmetic condition

but there's an electronic diaphragm in there for full compatibility with EF mount cameras

Canon EF 8-15mm f4L USM Fisheye Zoom lens mount_Olympus Pen 5's "full frame") but youA fisheye zoom lens sounds kind of wacky, but then again, it's pretty handy to have a full range of fisheye effects available with the turn of a ring. This Canon EF 8 15mm f4L USM goes from a circular image at 8mm to a full frame fisheye at 15mm, keeping a constant f4 aperture the whole way. In excellent condition, with clean glass and good function. Includes hood and caps.