I purchased rolleiflex 2.8E in unknown working condition and when it arrived it was in good cosmetic condition but it had been dropped or bump very hard on the aperture ring side. After hours and hours of working on it fixing the focus, shutter and faceplate I shot a test roll which is drying as I write this. Looking at the negatives by eye only they look well exposed and spacing looks good. This is the most I have stripped down a Rolleiflex and learned a lot along the way. One thing that stood out was that on the bracket that rides along the focusing cam there is some sort of material that rides the cam. Mine was gone so I made one from a nylon part that's used in copiers. I didn't know how big it should be so I thought I would guess. After the focus, shutter, faceplate straightened and disabling the EV systems so it's now a D and not an E and checking infinity focus using my digital camera I am impatiently waiting for the film to dry. I figure I was paid about 10 cents an hour but loved every minute of it and if it works that's even better.