Canon AV-1 with 50mm f1.8 S.C. slide Interior dimensions are approximately 12x20x36cm

Interior dimensions are approximately 12x20x36cm without the removable zippered pouch

But if you have to carry a lot of gear

Comes with a Canon Power Winder A

This Asahi Pentax 67 Extension Tube Set includes two tubes (28mm and 56mm) with autodiaphragm functionality

Canon AV-1 with 50mm f1.8 S.C. slide Interior dimensions are approximately 12x20x36cmThe Canon AV 1 is a manual focus, aperture priority SLR camera which is especially notable for having a substantially better battery door design than the self destructing flap that Canon used on the much fancier AE 1 and A 1 cameras. Anyway, the camera's in excellent condition, with accurate meter, new light seals, and only minor cosmetic wear. Includes a Canon FD 50mm f1. 8 S. C. lens.