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  2. Canon EF 75–300mm lens - Wikipedia

    en.wikipedia.org/wiki/Canon_EF_75–300mm_lens

    The Canon EF 75–300mm f / 4–5.6 III lens. Introduced in 1991, the Canon EF 75–300mm f / 4–5.6 lens is a telephoto zoom lens for Canon EOS single-lens reflex cameras with an EF lens mount. There are 3 basic types of the lens: the IS USM (Image Stabilization, Ultra Sonic Motor), the USM (USM, no IS) and non-USM (no USM, no IS).

  3. 75–300mm lens - Wikipedia

    en.wikipedia.org/wiki/75–300mm_lens

    75–300mm is a common focal length for camera lenses. Multiple articles exist about such lenses: Multiple articles exist about such lenses: Canon EF 75–300mm lens

  4. Canon EF 70-300mm lens - Wikipedia

    en.wikipedia.org/wiki/Canon_EF_70-300mm_lens

    Introduced on 15 September 2016, Canon EF 70-300mm f / 4-5.6 IS II USM lens is the second Canon lens equipped with Nano USM technology, a focusing motor that combines the benefits of a ring USM (ultrasonic motor) for high-speed AF during still photo shooting and lead-screw type STM (stepping motor) for smooth and quiet video autofocusing (AF). [6]

  5. Ultrasonic cleaning - Wikipedia

    en.wikipedia.org/wiki/Ultrasonic_cleaning

    Sonorex ultrasonic cleaner from the 1970s or 1980s Ultrasonic cleaning of a mobile phone. Ultrasonic cleaning is a process that uses ultrasound (usually from 20 to 40 kHz) to agitate a fluid, with a cleaning effect. Ultrasonic cleaners come in a variety of sizes, from small desktop units with an internal volume of less than 0.5 litres (0.13 US ...

  6. Canon EF 300mm lens - Wikipedia

    en.wikipedia.org/wiki/Canon_EF_300mm_lens

    When used on a digital EOS body with a field of view compensation factor of 1.3x, such as the Canon EOS-1D Mark IV, it provides a narrow field of view, equivalent to a 390 mm lens mounted on a 35mm frame body. With a 1.6x body such as the Canon EOS 650D, it provides a narrower field of view, equivalent to a 480 mm lens mounted on a 35mm frame body.

  7. Canon EF 100-300mm lens - Wikipedia

    en.wikipedia.org/wiki/Canon_EF_100-300mm_lens

    A Canon EF 100-300mm f/5.6L zoom lens. The EF 100–300mm refers to three telephoto zoom lenses produced by Canon. They are of the EF lens mount that is compatible with the EOS line of cameras. The three versions are: f / 5.6; f / 5.6L; f / 4.5–5.6 USM; The two 5.6 versions were contemporaries, launched at the beginning of the Canon EOS system.

  8. Canon EF-S 18–55mm lens - Wikipedia

    en.wikipedia.org/wiki/Canon_EF-S_18–55mm_lens

    The Canon EF-S 18–55mm lens f / 3.5–5.6 is a Canon-produced wide-angle to mid telephoto zoom lens for digital single-lens reflex cameras with an EF-S lens mount. The field of view has a 35 mm equivalent focal length of 28.8–88mm, and it is a standard kit lens on Canon's consumer APS-C DSLRs.

  9. Megasonic cleaning - Wikipedia

    en.wikipedia.org/wiki/Megasonic_cleaning

    Megasonic cleaning is a specialized cleaning method that utilizes high-frequency sound waves to remove contaminants from delicate surfaces. It is particularly effective in industries like semiconductor manufacturing , optics , and medical device production, where precision and gentle cleaning are crucial.

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