Has anyone else found Rollei's CR 200 slide film (or Agfa RSX II, apparently the same emulsion) to need a bit of downrating?
I'm not sure I've gotten it right yet, but when I've shot it at 200, the slides clearly were a little underexposed, and I'm now experimenting with rating it at 160 instead. I'd assumed this was a metering issue with the camera I was using (it's a 1970s rangefinder that expects 1.35V and is getting 1.5V instead), but I just compared the meter on that camera with a Canon AE-1, which has historically metered quite well, and found them nicely aligned. So I'm thinking the camera may be metering correctly, and I'm actually finding that the film needs a bit of downrating compared to box speed.
Am I nuts?