The LockCircle was designed from the ground up to the most seamless and functional camera professional body cap.

Precise F Mount bayonet built with ultra-precise specifications with a hole cut in the flange where the camera
locking pin locks securely inside. Bayonet limit screw for safety locking position, works like the original bayonet of the lens.

To remove the LockCircle, the locking pin button on the camera has to be pressed and the cap can be removed, exactly like a lens.
The aluminum bayonet has a hardener and porosity occlusion treatment to make it last forever, without any release
of particles inside the camera body. The flange sits on the the body bayonet and seals completely the camera from the elements.

All the surface of the flange and the camera bayonet ring are locked strongly in contact by the spring-loaded mechanism of the bayonet mount. Important design and testing has be done in the LockCircle section in the camera electrical contact area.
It is impossible to touch the camera contacts by mounting the LockCircle. Special knurled surface and finger-fit ergonomic design
for secure removal with sweaty hands or wearing heavy gloves. Solid grip in productions on the run.
Tested on the field by professional photographers.. Laser Marking Can't be called just a cap, is a serious camera body locking door for professional photographers!