Kiev 4 hotshoe question
Just got my new (to me, obviously) Kiev 4. It came with the Helios 103 53 f1.8, the Jupiter 12 and an aux. viewfinder. Anyway, I tried to mount the viewfinder (black plastic/bakalite?, no adjustments, labeled 3.5 cm) and it wouldn't go in at first. I took some fine sandpaper and tried to slim down the foot on the viewfinder and was able to get it to mount, but it got stuck. It would move side to side, but I couldn't manage to work it back out of the shoe. Long story short (too late, I know) the foot on the finder cracked and now there's a piece of the foot stuck in the shoe on the camera! Am I missing something? There looked to be a flat spring/pressure plate on one side of the shoe. Is there a catch I'm missing? My downloaded manual doesn't mention anything about that.