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What's The Best Way To Test A Lens?
I have an Wollensak enlarging lens, and wouldn't you know, it also works as a wider angle lens on a 4x5". The problem is, the aperture is deformed and only goes to f8-f32; which I'm not even sure is correct or not. (The aperture is shaped like an oval). What's the best way to test a lens like this to see whether or not it's performing properly, or close to it?
I was thinking about making an exposure of a blank, evenly lit wall and placing its value on Zone V. Meter at about f8, and then make the exposure. I could then make another exposure at f11, then at f16. Then Develop as normally in HC-110. I just don't know if I should develop individually or in a tank...?
Have any suggestions on what to do? Thanks.
1 Answer
- cabbiincLv 71 decade agoFavorite Answer
Couldn't you evaluate the apertures accuracy through a depth of field test? If you knew what was supposed to be in focus at what focal length/focus point you could see if you have what your supposed to have on the ground glass and not have to waste an exposure.
I've never done anything like that before and I don't have any skills with large format. Just a suggestion.
