Metabones Contax/Yashica to Micro Four Thirds Speed Booster format_620 4 by Bausch & Lomb

4 by Bausch & Lomb

These are lens mounts on a flange

The Canon 24-105mm f4L IS II USM lens is a good quality full-frame all-around lens with a useful focal length range from wide angle to short telephoto- plus a constant f4 aperture and an image stabilizer

The Nikon FM3a is the last (and most sophisticated) camera in the FE/FM line

Original Leitz catalog featuring the M4

Metabones Contax/Yashica to Micro Four Thirds Speed Booster format_620 4 by Bausch & LombA genuine Metabones Speed Booster adapter to mount Contax Yashica SLR lenses to Micro Four Thirds cameras. A Speed Booster slightly reduces the crop of your lenses (from 2x to about 1. 5x) and adds an extra stop of light, to boot. Not a bad bargain! In near new condition, with original box.