The 'standard' magnification for a loupe (for jewellery & gemstones, stamps & coins) is 10X.
This one is 20X
The diameter of the lens is 21mm
Too see reviews of loupes, click here
This really is the largest high-quality 20X loupe. Though even with this high-quality triplet, they are at the limit of what can be done technically - although the image is crystal sharp in the centre, it is just a bit wobbly around the edges.
Incidentally, I did once sell a genuine large 20X for half this price, but the quality was so awful I got fed up with people returning them and I discontinued them.
Magnification / lens size in mm: 20X21
Lens material: glass
Lens type: Triplet (one magnifier made of three lenses on top of each other)
Type: jewellers' loupe (small, pocket-size, folds into its metal casing)
Origin / brand: we import these from China
Presentation / extras: soft leather case and plain cardboard box
Everything you need to know about magnifiers and magnification.
See information about (and reviews of) loupes (small high-power folding jewellers' magnifiers).
Video (electronic) magnifiers, video magnifiers compared.
Products: see pocket microscopes and phone microscopes, click here.
With most magnifiers* magnification and working distance are related. Download our Excel sheet, enter a magnification to see the resulting working distance, enter a working distance to see the resulting magnification.
* excluding surgeons-type, digital & phone magnifiers, and microscopes.