There's lots of talk about beam expanders on lasers, but how about using them on small cameras? Are the optics high enough quality? I assume so. Would a BE be compatible with camera optics? The idea would be to just slide a BE over a pocket camera's telescoping lens and maybe using magnets to hold it on, for the purpose of improving lighting conditions. Where can I find a good one to try? Ideally the small lens would be around 15-20mm, and the big one around 40-60mm.
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