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2. Prism correction - Wikipedia

   en.wikipedia.org/wiki/Prism_correction

   Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]

3. Prism Video Converter - Wikipedia

   en.wikipedia.org/wiki/Prism_Video_Converter

   Prism is a multi-format video converter developed by NCH Software for Windows and Mac OS. It offers converting tools for instant media conversions. [1] Prism Video Converter can handle large and high-quality resolution media files. [2] It provides built-in compressor and adjuster settings, allowing users to customize and optimize their videos ...

4. Comparison of video converters - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_video_converters

   Comparison of video converters. Video converters are computer programs that can change the storage format of digital video. They may recompress the video to another format in a process called transcoding, or may simply change the container format without changing the video format. The disadvantages of transcoding are that there is quality loss ...

5. Prism (optics) - Wikipedia

   en.wikipedia.org/wiki/Prism_(optics)

   Prism (optics) An optical prism is a transparent optical element with flat, polished surfaces that are designed to refract light. At least one surface must be angled — elements with two parallel surfaces are not prisms. The most familiar type of optical prism is the triangular prism, which has a triangular base and rectangular sides.

6. Gamma correction - Wikipedia

   en.wikipedia.org/wiki/Gamma_correction

   Gamma correction is a type of power law function whose exponent is the Greek letter gamma ( γ ). It should not be confused with the mathematical Gamma function. The lower case gamma, γ, is a parameter of the former; the upper case letter, Γ, is the name of (and symbol used for) the latter (as in Γ ( x )).

7. Comparison of YouTube downloaders - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_YouTube_down...

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8. Reflex camera - Wikipedia

   en.wikipedia.org/wiki/Reflex_camera

   Reflex camera. Cross-section view of an SLR system, one of several systems by which reflex cameras are able to operate: 1: Front-mount lens (four-element Tessar design) 2: Reflex mirror at 45-degree angle 3: Focal plane shutter 4: Film or sensor 5: Focusing screen 6: Condenser lens 7: Optical glass pentaprism (or pentamirror) 8: Eyepiece (can ...

9. Video standards converter - Wikipedia

   en.wikipedia.org/wiki/Video_standards_converter

   A video standards converter is a video device that converts NTSC to PAL and/or PAL to NTSC. [1] The PAL TV signals may be transcoded to or from SECAM . Video standards converters are primarily used so television shows can be viewed in nations with different video standards. With the use of high-definition television, new digital video standards ...