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  2. Exposure value - Wikipedia

    en.wikipedia.org/wiki/Exposure_value

    This camera has a fixed shutter speed, so the "EXP VALUE" ring simply sets the aperture. On most cameras, there is no direct way to transfer an EV to camera settings; however, a few cameras, such as some Voigtländer and Braun models or the Kodak Pony II shown in the photo, allowed direct setting of exposure value.

  3. Canon EOS - Wikipedia

    en.wikipedia.org/wiki/Canon_EOS

    The first digital EOS SLR camera wholly designed and manufactured by Canon was the EOS D30, released in 2000. Canon sold two EOS cameras designed to use the APS film format, the EOS IX and the EOS IX Lite. Canon also sold a manual-focus camera, the Canon EF-M, which used the same EF lens mount as the EOS cameras. It came with all the automatic ...

  4. Canon EOS-1N - Wikipedia

    en.wikipedia.org/wiki/Canon_EOS-1N

    There is a cost to this however: slightly less light reaches the film, as some is always being directed up to the viewfinder and optical quality loss. By the time of the release of the next generation EOS-1V, considerable technical improvements to the standard camera design meant that Canon no longer offered RS model variants.

  5. Fixed-focus lens - Wikipedia

    en.wikipedia.org/wiki/Fixed-focus_lens

    Fixed focus can be a less expensive alternative to autofocus, which requires electronics, moving parts, and power.Since fixed-focus lenses require no input from the operator, they are suitable for use in cameras designed to be inexpensive, or to operate without electrical power as in disposable cameras, or in low-end 35 mm film point and shoot cameras, or in cameras featuring simple operation.

  6. Canon EOS-1 - Wikipedia

    en.wikipedia.org/wiki/Canon_EOS-1

    The camera also had a successor, the Canon EOS-1N, in 1994. The original EOS-1 was launched in 1989. It was the company's first professional-level EOS camera and was aimed at the same photographers who had used Canon's highly respected, manual focus professional FD mount SLRs, such as the Canon New F-1 and the Canon T90 .

  7. Canon EOS 2000D - Wikipedia

    en.wikipedia.org/wiki/Canon_EOS_2000D

    The Canon EOS 2000D, known as the Rebel T7 in the Americas, as the Kiss X90 in Japan and as the 1500D in southeast Asia, is a 24.0 megapixels digital single-lens reflex camera (DSLR) made by Canon. [1] It was announced on February 25, 2018 with a suggested retail price of US$549.99 including the EF-S 18-55 f/3.5-5.6 IS II lens.

  8. Varifocal lens - Wikipedia

    en.wikipedia.org/wiki/Varifocal_lens

    These are practical because of autofocus, and because the camera processor can automatically adjust the lens to keep it in focus while changing focal length ("zooming") making it suitable for still photography where a change in magnification of the subject, as demonstrated below is not a problem. The change in the subject size is a significant ...

  9. Wescam - Wikipedia

    en.wikipedia.org/wiki/Wescam

    Of the MX-Series, the MX-20 is the largest imaging system, weighing in at up to 198 pounds (90 kg). It has a diameter of 21 inches (53 cm) and a height of 26 inches (66 cm). This larger system is typically installed on large, fixed-wing aircraft, [11] [12] such as the P-3 Orion, Bayraktar Akıncı and Aerostats. This turret is used for long ...