There is visible gunk on the front surface of the blades, the rear looks clean. I think the shutter speed mechanism is the culprit, in particular a little half-moon shaped gear that the gentleman with the flickr page talks about affecting the speed exactly like I'm seeing. Top speed on this camera is 1/200 ( which gives me 1/200, 1/100. and 1/50) so I guess as long as I use 400 speed film or push to 800 I can probably use it over varying light changes handheld. I've dry-fired it about 50 times to no avail. It's definitely mechanical at the lower speeds, I just figured if I get up the nerve to tear it apart I might as well clean the gunk off the blades.
Last edited by Blooze; 10-09-2013 at 02:42 PM. Click to view previous post history.