Seagull right angle viewfinder  type_Light Modifier Standard 1/4"x20 thread for camera

Standard 1/4"x20 thread for camera mounting

and while it's relatively stout

The Nikon AR-10 is a double release cable for Nikon autodiaphragm bellows systems

but it's suitable for any 52mm threaded lens with a focal length of 50mm or above

Genuine Leica rear lens cap for M-mount lenses

Seagull right angle viewfinder &nbsptype_Light Modifier Standard 1/4"x20 thread for cameraThe Seagull right angle viewfinder is a "universal" model, with adapters for Leica, Pentax, and two different widths of Canon EOS viewfinders. Sony? No, sorry. But all that other stuff, yes. Rotates 180 degrees, with switchable 1x 2. 5x magnification.