The Rear Lens Cap for Canon EOS EF/EFs Lenses from Sensei is a plastic lens cap fitted for the rear of Canon EOS EF/EFs lenses. The rear lens cap is placed on the rear mount of a lens when it is not in use on a camera. The cap protects the rear element and lens mount from scratches, dust, water and fingerprints.

The Body Cap for Canon EOS EF/EFs Cameras from Sensei is a spare or replacement body cap for Canon EOS EF/EFs camera bodies. This black plastic cap twists onto the lens mount of the camera body to protect the camera's sensor and interior from dust and damage when a lens is not in place. Finger-grip edges on the body cap aid in placement and removal. Having an extra body cap is a good idea in case the original gets lost on vacation or assignment.