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Ashley
Guest
IMO, beyond 10X, a loupe w/o good optical correction is a HUGE headache. Literally a headache giver beyond half a minute of use or so (well, that's my tolerance level anyway).
After waiting time looking for something decent locally, I went and bought a good one: Gemology Pro from Harald Schneider.
20X gets very close and personal. However, it took borrowing time with a good microscope (~40X) to begin seeing treatment traces though Oh well...
Must agree with you there Valeria- I had a girl "pick one up" for me recently, and I can't stand it! There is close to zero correction on this lense, and it really strains my eyes