The #125 CAMELIA type adapter is a mounting adapter to attach specific shutter housing types to user equipment fitted with a M51 x 0.75 mm pitch thread. The adapter can be attached to the housing rear surface via the 2.00 inch x 40 TPI optical thread. The #125 adapter is intended for use with VS35, and CS45 series shutters equipped with the #17 "F" Type Video Adapter.