This is a Canon 5D MkII to 1.25" Telescope adapter.
May require sanding for precise fit.
Printed and tested on a Solidoodle 2 at .2mm with black PLA plastic
Won't click into place like a normal lens, but will support camera (although I wouldn't try it with a battery grip) the lighter the camera is the better.
Extra support is always recommended. I am not responsible for any broken cameras, USE AT YOUR OWN RISK!
Print out with support over 40 degrees.
Printed without issue on my Solidoodle 2
Light sanding will be required to remove all support material, I suggest a Dremmel and a wire brush.