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2. Large format lens - Wikipedia

   en.wikipedia.org/wiki/Large_format_lens

   Compared to mainstream cameras that typically have non-interchangeable lenses and/or focal plane shutters operated from the camera body, another difference with medium and especially large format lenses is that they are typically interchangeable in a very simple manner, being mounted in a "lens board", and include a shutter just in front behind ...

3. Shutter (photography) - Wikipedia

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

   Many medium-format and most large-format cameras, however, have interchangeable lenses each fitted with a central shutter. A few interchangeable-lens cameras have a behind-the-lens leaf shutter. Large-format press cameras often had a focal-plane shutter. Some had both a focal-plane shutter (for lens interchangeability) and a lens with central ...

4. Large format - Wikipedia

   en.wikipedia.org/wiki/Large_format

   The most common large format is 4×5 inches (10.2x12.7 cm), which was the size used by cameras like the Graflex Speed Graphic and Crown Graphic, among others. Less common formats include quarter-plate (3.25x4.25 inches (8.3x10.8 cm)), 5×7 inches (12.7x17.8 cm), and 8×10 inches (20×25 cm); the size of many old 1920s Kodak cameras (various versions of Kodak 1, 2, and 3 and Master View cameras ...

5. Lens board - Wikipedia

   en.wikipedia.org/wiki/Lens_board

   Cambo lens board with Copal #1. A lens board or lensboard is a photographic part used for securing a lens to the front standard of a large format view camera. [1] The lens board itself is usually flat, square, and made of metal (most commonly aluminum), wood, or plastic. The lens board will have a hole of various diameters drilled dead center ...

6. Photographic lens design - Wikipedia

   en.wikipedia.org/wiki/Photographic_lens_design

   Cross-section of a typical retrofocus wide-angle lens. Extreme or ultra-wide-angle lens - a wide-angle lens with an angle of view above 90 degrees. [4] Extreme-wide-angle lenses share the same issues as ordinary wide-angle lenses but the focal length of such lenses may be so short that there is insufficient physical space in front of the film ...

7. Focal-plane shutter - Wikipedia

   en.wikipedia.org/wiki/Focal-plane_shutter

   Focal-plane shutters may also produce image distortion of very fast-moving objects or when panned rapidly, as described in the Rolling shutter article. A large relative difference between a slow wipe speed and a narrow curtain slit results in distortion because one side of the frame is exposed at a noticeably later instant than the other and the object's interim movement is imaged.