Figuring out where to start with negative carrier, lens and base board.

Tim Holmes

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Feb 27, 2022
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After a few month's break from dark room work, I was struggling to get a negative (10x8) anywhere near in focus and wondering where to start with the lens vs neg carrier vs baseboard.

I have a Durst L184 and was using a 300mm lens. I have just converted it from a motorised head and baseboard to manual (with help from a very capable friend).
I had a brain freeze with where to start, so and turned to AI (argh)

Anyhow 3 prompts and a few minutes later and I have a 16kb calculator that runs on my iphone (or any web browser) and will calculate the starting point distances for neg to lens, lens to baseboard for all my enlarger lenses. It will also calculate enlargement factors. Feel free to down load and try.
 

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  • enlarger_calculator.html.zip
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