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2. Pellicle mirror - Wikipedia

   en.wikipedia.org/wiki/Pellicle_mirror

   In photography, the pellicle mirror has been employed in single-lens reflex (SLR) cameras, at first to enable through-the-lens exposure measurement and possibly to reduce camera shake, but later most successfully to enable fast series photography, which otherwise would be slowed down by the movement of the reflex mirror, while maintaining constant finder vision.

3. One-way mirror - Wikipedia

   en.wikipedia.org/wiki/One-way_mirror

   One-way mirrors for upper-level observation deck viewing down into a classroom (University of Wisconsin-Eau Claire) A one-way mirror, also called two-way mirror [1] (or one-way glass, half-silvered mirror, and semi-transparent mirror), is a reciprocal mirror that appears reflective from one side and transparent from the other. The perception of ...

4. Magic lantern - Wikipedia

   en.wikipedia.org/wiki/Magic_lantern

   The magic lantern used a concave mirror behind a light source to direct the light through a small rectangular sheet of glass—a "lantern slide" that bore the image—and onward into a lens at the front of the apparatus.

5. Twin-lens reflex camera - Wikipedia

   en.wikipedia.org/wiki/Twin-lens_reflex_camera

   The smallest photography TLR camera using 35 mm film is the Swiss-made Tessina, using perforated 35 mm film reloaded into special Tessina cassette, forming images of 14 mm × 21 mm. Goerz Minicord twin lens reflex made 10 mm × 10 mm format on double perforated 16 mm film in metal cassette. 6 Element Goerz Helgor F2 lens, metal focal plane ...

6. Flipped image - Wikipedia

   en.wikipedia.org/wiki/Flipped_image

   Many large format cameras present the image of the scene being photographed as a flipped image through their viewfinders. Some photographers regard this as a beneficial feature, as the unfamiliarity of the format allows them to compose the elements of the picture properly without being distracted by the actual contents of the scene.

7. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

8. Reflector (photography) - Wikipedia

   en.wikipedia.org/wiki/Reflector_(photography)

   A portable folding reflector positioned to "bounce" sunlight onto a model. Reflectors vary enormously in size, colour, reflectivity and portability. In tabletop still life photography, small mirrors and card stock are used extensively, both to reduce lighting contrast and create highlights on reflective subjects such as glassware and jewelry.

9. Pinhead mirror - Wikipedia

   en.wikipedia.org/wiki/Pinhead_mirror

   Pinhead mirror technology was protected under US patent 4,948,211 - "Method and Apparatus for Optical Imaging Using a Small, Flat Reflecting Surface" until the patent expired in 2009. Disco balls can be used as pinhead mirrors to project solar images. The math behind them is the same as for a square pinhole.