10X20 triplet loupe with UV light + white rim of light

Summary To help you compare the 10X loupes, a summary of this item is shown in blue: SIZE: 10X12 - 10X13 - 10X14 - 10X20* - 10X21 - 10X21 - 10X23  (magnification X diameter of lens, mm) * useable diameter of this lens (allowing for the rim that holds the lens in place) 18mm. OPTICAL QUALITY: basic - good - VERY GOOD – exceptional There are also reviews of loupes, click here. Comments In addition to the white light, this has a very effective UV light (not all UV lights in loupes are effective!) for examining stamps, banknotes, gemstones etc (there are many uses, see our article about UV lights). Light is as important as magnification, without a good light the best loupe is of little use. Sitting at a desk this isn't a problem, use any table light; working as a gemmologist you will have your own light source, but working at dimly-lit auction halls or early morning markets - you will need a light! The light in this loupe is in the form of a 'rim' all the way around the lens, which is much better than 'spot' lights which can cause reflections and make it more difficult to see.