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2. Magnifying glass - Wikipedia

   en.wikipedia.org/wiki/Magnifying_glass

   A pen seen through a magnifying glass Jim Hutton as detective Ellery Queen, posing with a magnifying glass. A magnifying glass is a convex lens that is used to produce a magnified image of an object. The lens is usually mounted in a frame with a handle. A magnifying glass can be used to focus light, such as to concentrate the Sun's radiation to ...

3. Magnification - Wikipedia

   en.wikipedia.org/wiki/Magnification

   The postage stamp appears larger with the use of a magnifying glass. Stepwise magnification by 6% per frame into a 39-megapixel image. In the final frame, at about 170x, an image of a bystander is seen reflected in the man's cornea. Magnification is the process of enlarging the apparent size, not physical size, of something.

4. Eyepiece - Wikipedia

   en.wikipedia.org/wiki/Eyepiece

   Blue light, seen through an eyepiece element, will not focus to the same point but along the same axis as red light. The effect can create a ring of false colour around point sources of light and results in a general blurriness to the image. One solution is to reduce the aberration by using multiple elements of different types of glass.

5. Loupe - Wikipedia

   en.wikipedia.org/wiki/Loupe

   A photographic loupe for examining film and prints. A loupe (/ ˈ l uː p / LOOP) is a simple, small magnification device used to see small details more closely. [1] They generally have higher magnification than a magnifying glass, and are designed to be held or worn close to the eye.

6. 15 best-selling beauty products you probably didn’t know were ...

   www.aol.com/lifestyle/top-rated-beauty-at-costco...

   Simplehuman 8” LED Light Sensor Mirror with 5x and 10x Magnification. $150 at Costco. ... This bestseller from Simplehuman has both 5x and 10x magnification, which can be useful for putting in ...

7. Barlow lens - Wikipedia

   en.wikipedia.org/wiki/Barlow_lens

   Cone of light behind an achromatic doublet objective lens (A) without (red) and with (green) a Barlow lens optical element (B). The Barlow lens, named after Peter Barlow, is a diverging lens which, used in series with other optics in an optical system, increases the effective focal length of an optical system as perceived by all components that are after it in the system.