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Actually used the old enlarger lens today when I touched up a razor on the finishing hone. I think I may use it from now on as it works as well as my other 2 actual viewing loupes.

Bob

I imagine you could but I just use a goose neck lamp with an LED bulb for lighting.

You mentioning adding a ring of LED lights reminded me of the digital sensor viewing loupes used to check for...

This may help. Finally got around to getting a photo.

312881

Bob

https://en.wikipedia.org/wiki/Enlarger#/media/File:Darkroom_enlarger_en.svg

The lens just unscrews in most cases. The 35mm film enlarger lenses are about the size of a zippo lighter. I know,...

If for some strange reason you have access to a photographic enlarger lens you likely can use it for a viewing loupe when honing. Going through some left over photographic gear I found a very old...