Back-Bone Adapter Canon EOS to C-Mount 1/4"-20 thread at bottom of

1/4"-20 thread at bottom of grip for attaching wrist strap or mounting on a tripod

so your GoPro camera can become the ultimate tool for the gorilla filmmaker in you

high frame rate immersive 360° videos with fewer cameras

for extra durability in the saltwater environment

If you have an extended backdoor for your case the Ribcage and lens will fit inside so you can shoot underwater

Back-Bone Adapter Canon EOS to C-Mount 1/4"-20 thread at bottom ofConnect your favorite manual Canon EF lenses to your Ribcage with this EOS to C Mount adapter. Fully automatic lenses can also be connected but please note that there is no electrical connection via C Mount, so auto focus and iris settings will not function. Fully automatic EOS lenses default to having the iris wide open when used with this adapter. 35mm (full frame) lenses will experience a crop factor of 5. 7 with the Ribcage.