Anyone here have any practical experience with this camera? Found this at a local Goodwill store and had to spend a couple of days disassembling the lens to get to the leaf shutter and clean it with solvent. Found a leaf of the iris has jumped out of the pivot socket and is stuck up out of the way, so I left it alone and cleaned some sticky brown substance off the leaf shutter blades that were gluing them together. Speeds seem right and, other than the irregular shaped aperture, everything seems to work fine. The camera looks and feels substantial and relatively well made. Shooting a roll now to see how it performs.