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hand lens - 20 X folding magnifier

$ 10.00

Decent folding 20x hand lens, made in China (where else?). These aren't the Hastings triplets we paid a fortune for to use in college geology classes half a century ago, but still a triplet - the field of view is good all the way across except for near the edges and your wallet won't feel much lighter after purchasing one. You can get a good view of the crystals that makeup an igneous rock with these, or the grains in a sedimentary rock. 

If you haven't used this type of lens, the trick is to bring it close to your eye, or to your glasses, by resting your hand against your cheek, then bringing the specimen up close to the lens. The Sherlock Holmes method, with the magnifier held at arms length or out in front of you, won't work. It won't take long to polish your technique.

The whole works, except for the lens, is chromed metal. There's a shoelace loop on these, so you can hang one around your neck and stick it in your shirt pocket. It won't get lost when you bend over to pick up a rock. Geologists have their hand lenses around their necks, doctors their stethoscopes. Or you can just stick it in your pocket. It comes with a black case.

One caution. Most geology students use a 10x hand lens. These seemed to disappear with covid, as most reasonably-priced ones were made in China. The 20x lens are the only ones we are currently able to get. 20x is fine, but you are getting a closer look with a smaller field of view.


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