Originally Posted by
henpe
+ both enlargers wall-mounted, on the same wall and next to each other
0 No paper under grain focuser, when using neither of the enlargers, so we are consistent between tests.
+ Both enlargers should be properly aligned, but I dont think that matters here since I was only interested in a tiny spot of the projected image corresponding to the fine details/groups of the USAF target (I focused by using my grain focused on this spot).
I think I have ruled out most factors and that I am consistent in my testing. I suspect that tiny vibrations in my Durst cause small vibrations that distort the very fine details of the USAF-target when printed. I suspect this does not have a practical significance to print quality, but just out of curiosity I will try to compare prints from my Durst with and without the fan disconnected. I will report back in due course....
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