Sample Photo showing static electricity on film taken in early M3 Camera with glass pressure plate.
The glass pressure plate in the early M3 cameras caused static from the film rubbing on the glass pressure plate as seen in first photo. For a very short while, Leitz milled slots/gaps in the early M3 glass pressure plate to reduce static build up as seen in 2nd photo. Once they changed to a black aluminum pressure plate the static problem improved. Plus, the glass pressure plates cracked easily. I can convert the glass pressure plate to the common black aluminum plate in the early M3 cameras.