This is the obvious accessory for the 85mm Jupiter-9 f2 lens. It is as clear and bright as the results from the lens itself. Other than use the Universal finder, this is the only way to view what your 85mm lens is seeing. Don't forget to aim off a bit for parallax as there is no way to compensate for this except using the brain and the Mark One Eyeball of the shooter !
My only gripe is that there is no locking foot on the finder, so you have to be careful not to rub it off in use.Rating: [5 of 5 Stars!]