Dear Friends: In the late 80's (when I was a kid) my father taught me how to use the Leica R4. I use the M-system these days but for last few weeks I have been wanting to make a comeback to film photography. I recently bought a used R4 with Summicron-R 50 mm lens. The lens looks great (I tested on Leica M10 with adapter). However, when I got the negatives developed and scanned, something strange showed up in the photographs. I am attaching a few examples. Can someone with an experienced eye help me figure out what is going on so that I can fix this problem! Your help is appreciated.