Currently (v1.93.4) when I display images by their real size (Ctrl+Numpad -) on my 21" monitor they are actually a bit bigger than their real (printed) dimensions.
This happens because different monitors have different DPI.
It'd be nice to have a customizable setting (factor) to compensate for this difference so that zoom Real Size (and 50%, 200%, etc) could be exactly what it means.
As this is a one time, set and forget thing maybe it could be done editing xnview.ini directly. Maybe it doesn't even have to be on the Options View dialogue. If it did maybe it could be called "Use monitor DPI correction". Default would be x1, of course.
Setting to calibrate Real Size display
Moderators: helmut, XnTriq, xnview