Back cover lock mechanism of a camera

Backup battery storing structure for a camera

Barrier device

Barrier device and image pickup apparatus

Barrier device for camera

Barrier mechanism

Barrier opening and closing mechanism

Barrier-attached camera

Battery accommodating device

Battery holding structure

Battery storing apparatus, electronic equipment and...

Bayonet mount

Bayonet mount and photo-taking lens barrel for interchangeable l

Belt-driven shutters

Bi-directional spring device for opening and closing light shiel

Bi-stable mechanical photographic shutter

Blade drive device

Blade drive device and optical apparatus

Blade drive device and optical equipment

Blade driving apparatus for cameras