For some reason Contax G lenses always come with missing rear lens caps so I made my own.

The rear caps are split up in the ring witht he mount and end caps to close them up. Currently there are only 2 styles (flat and finder) but I think about adding more.

Because the lenses stick quite far into the mount on the wide-angle lenses I made two ring sizes, 14mm and 21mm tall. The 14mm fits nice ont he 35mm and shout fit the 28mm too, the 21mm is needed for the 21mm lens.

End caps are flat disks (for most lenses) and a version that holds the Finder for the 21mm lens. The end caps should fit fairly well but can be secured with a drop of superglue.