A rear cap for your mount, to print yourself.

Choose Canon EF, ARRI PL or Sony E, a gear or flute grip and, if you like, your focal length on the face or a hidden AirTag pocket. The cap prints face down without supports, and a free test ring checks the bayonet first.

What you set

• Mount: Canon EF / EF-S, ARRI PL (standard or deep) or Sony E / FE (standard or deep)
• Grip: module 0.8 gear teeth or rounded flutes
• Focal length as a flush two-colour face; snap-in AirTag pocket

What you get

• Plain EF cap: free 3MF and STL
• Other mounts, focal length or AirTag: 3MF, aligned STLs, a fit test ring and a printing guide
• Free fit test ring for every mount

New to measuring? Read how to measure a lens for a focus gear.

More generators

The interactive generators need JavaScript. Every file is generated from your dimensions in millimetres, with module 0.8 teeth and engraved sizes.