u/Dazzling_Category416

Found this loupe at a thrift store. Is this any good? Location: Digbeth, Birmingham, Uk.

This is very old and the glass is a little cracked at side but the vision is still clear. Anyone knows its manufacturer? Location: Digbeth, Birmingham.

u/Dazzling_Category416 — 2 days ago
▲ 1 r/Optics

Achromatic Aplanatic Lens.

Hi everyone. I found a loupe at a thrift store. I haven’t bought it yet and forgot to take a photo, but it looked high quality. I’d like to know whether it has a lens suitable for gemstone observation. Is there any quick test or simple hack I can do on the spot to check if it’s a triplet, achromatic–aplanatic lens? Any tips to identify this without special tools would be really helpful.

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u/Dazzling_Category416 — 6 days ago