#1 - Wanting a more precise way to ensure proper focus when printing at the enlarger, I have been reading about "grain focusers".
I have never used one but there seems to be an inherent source of inaccuracy with these; if the distance from the mirror to the "viewing screen" (or whatever they use) is not EXACTLY the same as the distance from the mirror to the paper, they will NOT give precise focus. I also can not see any easy way to PROVE that these distances ARE exactly the same - everything ends up subjective.
It would seem a more accurate method of focus would be to look directly at the image projected on the paper-plane (with magnification), although admittedly it is not as convenient.
Do these things actually work as well as people think? How do you veryify the accuracy of the focuser?
#2 - I'm also thinking about an exposure meter for the enlarger. I have never used one but my appetite for 8x10 paper seems to have gone UP considerable since moving to LF! ;-)
They aren't very expensive and it would seem like a good way to reduce the number of tests strips required.
Any comments?
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