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2. Magnifying glass - Wikipedia

   en.wikipedia.org/wiki/Magnifying_glass

   Magnifying glasses typically have low magnifying power: 2×–6×, with the lower-power types being much more common. At higher magnifications, the image quality of a simple magnifying glass becomes poor due to optical aberrations, particularly spherical aberration. When more magnification or a better image is required, other types of hand ...

3. Glossary of numismatics - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_numismatics

   A false date put on a coin to defraud collectors, usually to make it appear more valuable. Such alterations are often easily spotted with the aid of a magnifying glass. anepigraphic coin A coin without an epigraph or inscription. Many ancient coins used only a simple picture of an animal to show value or weight. annealing

4. How to Spot The Best Vintage Jewelry in Thrift Stores ... - AOL

   www.aol.com/lifestyle/spot-best-vintage-jewelry...

   Most important is a 10-power jeweler’s loupe, which is essentially a small and powerful magnifying glass. “It is all in the details and the more you can see, the better choices you can make ...

5. Coddington magnifier - Wikipedia

   en.wikipedia.org/wiki/Coddington_magnifier

   A Coddington magnifier is a magnifying glass consisting of a single very thick lens with a central deep groove diaphragm at the equator, thus limiting the rays to those close to the axis, which minimizes spherical aberration. This allows for greater magnification than a conventional magnifying glass, typically 10× up to 20×. Most single lens ...

6. Magnification - Wikipedia

   en.wikipedia.org/wiki/Magnification

   In this case the angular magnification is independent from the distance kept between the eye and the magnifying glass. If instead the lens is held very close to the eye and the object is placed closer to the lens than its focal point so that the observer focuses on the near point, a larger angular magnification can be obtained, approaching

7. 'Makes a HUGE difference': If you struggle to see small print ...

   www.aol.com/lifestyle/magnipros-book-magnifier...

   I’m only 50 years old, but I do need bifocals and some writing is still too tiny. I got this book magnifier and it makes a HUGE difference! I can see every little detail of the tiniest print ...