Black's Attaché II lens mount_Contax/Yashica except that there is a

except that there is a slight colour fade on on edge of the filter (see image)

The plates are 10x14cm

but you'll need to use the included external viewfinder to frame your shot (it's too wide for the camera viewfinder)

This is a very large

A set of diffusers for the Sekonic L-398 meter

Black's Attaché II lens mount_Contax/Yashica except that there is aThe Black's Attach II is a pocketable camera that looks suspiciously like the Konica Big Mini, but it is not a Konica Big Mini: it's a Samsung, probably. It has a 34mm f3. 5 lens, autofocus, auto flash, and a self timer. Nice and small. Runs on a single CR123 battery (included)