Summary 20X12 The 'standard' magnification for a loupe (for jewellery & gemstones, stamps & coins) is 10X. This one is 20XThe diameter of the lens is 12mm** useable diameter of this lens (allowing for the rim that holds the lens in place) 11.5MM Too see reviews of loupes, click here Detail If you want a 20X magnification loupe, go for the absolute-best quality / smallest lens (this one is 5-element, better than than the usual high-quality 'triplet' lens). It is, however, a small lens. You will always (with any loupe) have to compromise between lens size and optical quality. Technical Magnification / lens size in mm: 20X12 Lens material: glass Lens type: 5-element (i.e. once louope with 5 lenses on top of each, for best possible quality) Type: jewellers' loupe (small, pocket-size, folds into its metal casing) Origin / brand: we import these from China Casing: metal Finish: chrome Presentation / extras: soft leather pouch and plain cardboard box Further information Everything you need to know about magnifiers and magnification. See information about (and reviews of) loupes (small high-power folding jewellers' magnifiers). See information about (and reviews of) binocular (head-worn) magnifiers- especially the surgeons-type. See a guide to magnifiers for the partially-sighted. See loupes with UV lights. 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.
