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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. Beyond its primary function of magnification, this simple yet ingenious tool serves a ...

3. Enlarger - Wikipedia

   en.wikipedia.org/wiki/Enlarger

   All enlargers consist of a light source, normally an incandescent light bulb shining though a condenser or translucent screen to provide even illumination, a holder for the negative or transparency, and a specialized lens for projection, though some, such as the Rapid Rectilinear or Aplanat [citation needed] could be used in both camera and enlarger.

4. Loupe - Wikipedia

   en.wikipedia.org/wiki/Loupe

   Loupe-mounted lights used to be fed by fiber optic cables that connected to either a wall-mounted or table-top light source. Newer models feature a more convenient LED lamp within the loupe-mounted light and an electric cord coming from either the conventional wall-mounted or table-top light source or a belt clip rechargeable battery pack.

5. Michaels - Wikipedia

   en.wikipedia.org/wiki/Michaels

   Michaels Stores, Inc., more commonly known as Michaels, is a privately held retail chain of American and Canadian arts and crafts store. It is North America's largest provider of arts, crafts, framing, floral and wall décor, and merchandise for makers and do-it-yourself home decorators . [ 2 ]

6. Photographic lens design - Wikipedia

   en.wikipedia.org/wiki/Photographic_lens_design

   The design of photographic lenses for use in still or cine cameras is intended to produce a lens that yields the most acceptable rendition of the subject being photographed within a range of constraints that include cost, weight and materials.

7. Dome magnifier - Wikipedia

   en.wikipedia.org/wiki/Dome_magnifier

   A dome magnifier is a dome-shaped magnifying device made of glass or acrylic plastic, used to enlarge words on a page or computer screen. They are plano-convex lenses : the flat (planar) surface is placed on the object to be magnified, and the convex (dome) surface provides the enlargement.