Canon Extension Tube EF12 II brand_B+W Thumbscrew plates have a larger

Thumbscrew plates have a larger

It includes a clamp for a Leica thread mount camera and a groundglass for visual focusing

with a few minor scuffs at the hood mounting lugs

But it works well

it's not tiny tiny (interior dimensions are approximately 11x26x30cm) but it's definitely sized down from your normal run of backpacks

Canon Extension Tube EF12 II brand_B+W Thumbscrew plates have a largerCanon Extension Tube EF12 II for Canon EF mount, in excellent cosmetic condition, with light finish wear on mounting surfaces. Adds 12mm of extension to mounted lens, improving close focus capability while maintaining complete communication between lens and camera. Includes front and rear caps.