Seems like a shutter issue; and they are more prominent in 1/500 or 1/1000s shutter.
Any other explanation other than a broken shutter at high shutter speed ?
Photos were taken with a 50f/2 Thypoch Eureka. That lens has no issue on the M11.
Thanks in advance for any feedback.
One example:
Jul 25, 2025 at 07:58 PM
Previous versions of slee915's message #16858530 « Black patch in M3 photos »
