Hello everyone.
I just wanted to ask if it is me that's the problem.
Ive been using a plastic Fresnel for many years, but Ive always had it with the uneven side towards me (where I put the Loupe). Now i read that its actually wrong.
I moved it around so that the flat side is towards me, but it was much better before. Now I have to be much more straight in front of the glas, otherwise I get sharp falloff patterns (circles) on the sides.
I never had any problems with sharpness or similar using the fresnel in the wrong direction.
Any reasons why I should go back to the former installation?
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