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2. Magnification - Wikipedia

   en.wikipedia.org/wiki/Magnification

   Here, is the focal length of the lens in centimeters. The constant 25 cm is an estimate of the "near point" distance of the eye—the closest distance at which the healthy naked eye can focus. In this case the angular magnification is independent from the distance kept between the eye and the magnifying glass.

3. Magnifying glass - Wikipedia

   en.wikipedia.org/wiki/Magnifying_glass

   The eye can then be a larger distance away, and a good image can be obtained very easily; the focus is not very sensitive to the eye's exact position. The magnifying power in this case is roughly MP = (0.25 m)Φ. A typical magnifying glass might have a focal length of 25 cm, corresponding to an optical power of 4 dioptres. Such a magnifier ...

4. Loupe - Wikipedia

   en.wikipedia.org/wiki/Loupe

   Analog photographers use loupes to review, edit or analyze negatives and slides on a light table. Typical magnifications for viewing slides full-frame depend on image format; 35 mm frames (24×36 mm slides to 38×38 mm superslides) are best viewed at ca. 5×, while ca. 3× is optimal for viewing medium format slides (6×4.5 cm / 6×6 cm / 6×7 cm).

5. Magnifier - Wikipedia

   en.wikipedia.org/wiki/Magnifier

   A magnifier is a device used for magnification. Magnifier can also refer to: Magnifying glass, an optical device for magnification; Screen magnifier, software that magnifies part of a computer screen Magnifier (Windows), a screen magnifier for Microsoft Windows; Magnifier (iOS), a magnifying glass app for iOS; Magnifier, a magnifying glass app ...

6. List of most-viewed YouTube videos - Wikipedia

   en.wikipedia.org/wiki/List_of_most-viewed...

   Progression of the most-viewed video on YouTube Video name Uploader Views at achievement* Publication date Date achieved Days after upload Days held Takedown date Ref Notes "Baby Shark Dance" [7] Pinkfong Baby Shark - Kids' Songs & Stories: 7,046,700,000: June 17, 2016: November 2, 2020 1600 1,517 "Despacito" [10] Luis Fonsi: 2,993,700,000 ...

7. The 15 best subscription gifts of 2024, no shipping required

   www.aol.com/lifestyle/best-subscription-gifts...

   The subscription includes two dog toys and two packages of high-quality treats with every shipment. ... or just try them out and return them for free. $20 at StitchFix ... Margot Elena is packed ...