Yeah I don't edit EXIF either, passes straight through as far as I know. I think I have noted this in other places as well. But, I have no idea why it would be so. And I don't know if it is something the lens, camera, or editor provides (I think lens though). I know we also use different editors, Lightroom vs Capture One, but don't think that matters if we do not edit the EXIF. Certainly an oddity in any case.On my side I don't edit EXIF data for pictures made with the Voigtländer FE 1.2/40.