Richard G
Veteran
Hi - I had to check the exif myself! From memory I had the lens stopped down at least one stop. The exif says f/5.7 (the M9 doesn't have a direct reading from the lens setting, and estimates the aperture from the light reading). I think 5.6 is probably right.
The M9 can be way off in its estimation of aperture, both ways depending on the lens. I find it consistently increases the f stop number with my 50 Elmar M - underestimates the aperture, the amount of light let in. I haven't looked at this systematically with other lenses.