A pretty common and popular camera, but not too many people actually use it. Got mine off eBay, looked in great shape. Upon further inspection had significant internal haze. I figured (mostly correctly) that it could be cleaned, so I sent it to Paul Ebel for a CLA. He was able to get most of the haze out, but one set of elements (the 45mm f2 Ektar has 6 elements) could not be separated, so the haze on those remains. I would say he got 80-90% of it cleaned. Still not perfect though. This is a pre-War model with the Compur-Rapid shutter. Note the shutter speeds are damn near perfect. Here are some examples on 35mm Acros film - first roll since the CLA. Using 35mm film cuts about 10% of the usable frame off. Next roll I will use cut-down 120 film. You can get 14-15 shots per roll when you re-roll your own 828 film. These examples are on a very cheap scanner, so don't really do it justice. The uncoated lens is low contrast relative to modern ones, though it appears pretty sharp. There is some flare you can see in the bridge photo. Not sure if that is related to the bit of haze left, but I'm sure it doesn't help. The piano photo is at f2.8, which looks pretty good to me. Others are at f8-f11. Edit: upon upload, the image quality took a turn for the worse! Eventually I'll print something to get a true measure of what the lens can do.