@MdB When you shoot with different brands, you always run into stuff I’m sure.
#1. Clutch MF works fine on my cameras.
#2. Not sure what you’re talking about digital corrections? I’m trying to understand... Sigma’s Contemporary lineup works with digital corrections. I shoot Olympus all the time, the Pro series is optically outstanding even with no corrections.
#3. No idea what you mean by sensor reflections - are you shooting these in a lab or out in the real world? Or just pulling my leg?
And IBIS is excellent even without IS lenses. A non-issue if ever there was one.
Edit: But I greatly appreciate being able to buy lenses by the same manufacturer within weeks of purchasing the camera, all with the same outstanding build and optical quality, like Sony or Fuji. I really don’t like spending years growing a collection from a grab bag of companies.