Dental Surgical Medical Binocular Loupes 2.5X420mm Optical Glass DY-101

I ordered this loupe for hobby work and DIY jobs around the house with some reluctance. The price seemed too low for a high quality product. I was very surprised when I opened the nicely made semi-hard zipper case and removed a beautifully finished product. I was even more surprised when I adjusted them and tried the magnification on a project. The optical quality is quite good; more than adequate for my needs.

A word to the wise for those who are not knowledgeable about optical magnification. Proper adjustment is critical to achieve binocularity. If they are just a little to wide or narrow, you will be seeing out of one lens or even worse, experience double vision. The distance between lenses must be close to the distance between your pupils at the near distance. You can find this out from your eyeglass prescription, your eye doctor, or have someone measure the distance between your pupils with a small ruler. After this is set, they must be angled so that they point roughly toward the focal distance (in this case 420 mm). The back of the lenses should come as close to resting on the spectacle lenses behind them as possible.

My only other comment is that if you have a lot of astigmatism (greater than about 0.50 diopters-look at your glasses RX) or wear a strong plus or minus glasses correction, you would probably be better off with similar loupes that clip onto your glasses.

Overall I am delighted with this product and would buy it again.