Blackmagic Pocket Cinema Camera lens mount_Canon FD The B50 side attaches to

The B50 side attaches to the outer bayonet of the lens

A professional full-frame ultrawide lens with Canon's premium L glass and construction

This extension tube for LTM/39mm thread mount Summer & Elmar 5cm lenses is designed to provide 1:3 magnification

8 aperture

Blackmagic Pocket Cinema Camera lens mount_Canon FD The B50 side attaches toThe original Blackmagic Pocket Cinema Camera is a tiny camera designed to do one thing: shoot really high quality full HD video. It doesn't take pictures, it doesn't have a bunch of scene modes, and the menu is definitely not designed for beginners. Also, the battery lasts like 15 minutes. THAT SAID, the video output, in either ProRES or RAW modes, is fantastic, and that's why this thing exists. The lens mount is Micro Four Thirds; sensor size is