I'm assuming you mean a GG loupe rather than something for viewing on the lightbox.
I like the Horseman 7x, though Peak is probably the actual manufacturer. It's reasonably small but still fairly tough if it gets dropped. Has quality optics, but is not
so expensive that one will freak if its dropped too far. As a backup emergency loupe
I have an absolutely tiny little Emo 10X. This came with an adapter so you can switch
around the optics and use it as a miniature telescope too.
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