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OpticsPlanet utilizes many guest experts to provide high quality informative content on products that we sell, how to choose the right one for your use, and provide expert advice and tips. OpticsPlanet guest experts cover a wide range of topics from microscopes for discovering the world of cells and other micro organisms to telescopes for exploring the vast universe, which our planet is a part of. Whether you are an amateur or an expert, we're sure you will find useful information among all of the articles that our guest authors have created.


  • magnifiers
  • loupes

1. Introduction to Magnifiers

Magnifiers, whether pocket, handheld, loupe or hands free all follow some basic rules of optics. When ordering, keep these rules in mind.

As magnification goes up in a magnifier, lens size goes down. A 2x magnifier, such as the Bausch & Lomb 2" x 4" Rectangular 2x has a lens size of 4 inches. This is suitable for reading a book or text or just taking a look at things in general. On the other hand, a 10x magnifier, such as the Nikon 10x Jewelry Loupe Jeweler Pocket Round Magnifier - 6947 has a lens size of about a 1/2 inch or less and will therefore offer a much smaller "window" to see things. It is great for high magnification and a super close look at many objects, but it will not perform as well if reading a book. Unfortunately, you can't have it both ways, so you need to decide if magnification or lens size is more important for your application.

Buyer's Guide to Magnifier and Loupe