This is the rare black action finder for the F. It is a useful accessory that I am surprised is not more common. It allows you to see the whole frame from about four inches away and is only slightly dimmer than the eyelevel prism.
It is in excellent condition with light wear and works perfectly. There is a tiny dent on the top of the prism but it is minor and only cosmetic. The glass is clean and scratch-free with no haze, fungus, nor other issues.
SKU: 240506-4