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1. photo.stackexchange.com › questions › 74876What is Nano USM and how does it compare to an STM or USM lens?

   photo.stackexchange.com › questions › 74876

   Feb 19, 2016 · Canon's Nano USM focusing motors have so far been used in the EF 18-135mm f/3.5-5.6 IS USM and EF 70-300mm f/4-5.6 IS II USM lenses. It is a type of AF motor that, like Ring USM, uses micro-piezo vibrations to move the lens focus elements.

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3. www.kenrockwell.com › canon › eos-rCanon RF 100~400mm IS USM - KenRockwell.com

   www.kenrockwell.com › canon › eos-r

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   Canon EOS R5, RF 100-400mm IS USM at 270mm at f/9 at 1 / 320 at Auto ISO 100 (LV 14¾), exactly as shot. bigger or camera-original 45 MP © 9 MB JPG file.

4. www.digitalcameraworld.com › reviews › canon-rf-100Canon RF 100-400mm f/5.6-8 IS USM review - Digital Camera World

   www.digitalcameraworld.com › reviews › canon-rf-100

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   Nov 23, 2021 · The RF 100-400mm joins a powerful yet easily manageable pair of RF 600mm F11 IS STM and RF 800mm F11 IS STM primes, along with the more pro-spec Canon RF 100-500mm f/4.5-7.1 IS USM zoom lens.

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6. shotkit.com › canon-usm-lensWhat Is a Canon USM Lens (+ Do You Need One?) - Shotkit

   shotkit.com › canon-usm-lens

   The Canon ultrasonic USM technology is recognized for its quick, precise, and quiet autofocus operation. This makes USM lenses particularly suitable for photography and videography where speed, accuracy, and low noise are essential.

7. www.digitalcameraworld.com › reviews › canon-rf-200Canon RF 200-800mm f/6.3-9 IS USM review: all hail the new ...

   www.digitalcameraworld.com › reviews › canon-rf-200

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   Feb 12, 2024 · The Canon RF 200-800mm f/6.3-9 IS USM is the reigning superzoom champion in terms of focal range and is impressively lightweight and compact for its reach. However, its mediocre maximum aperture does limit its usefulness in low-light performance.

8. www.photoreview.com.au › reviews › mirrorless-lensesCanon RF 100-400mm f/5.6-8 IS USM lens - Photo Review

   www.photoreview.com.au › reviews › mirrorless-lenses

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   The RF 100-400mm f/5.6-8 IS USM is a lens many owners of Canon’s EOS R cameras have been waiting for. Although not particularly fast, it has a winning combination of light weight, easy handling, sharp focusing and a competitive price tag.

9. People also ask

   What is a USM lens?

   • USM stands for Ultra Sonic Motor. USM refers to a type of autofocus motor used in some lenses produced by Canon. The Canon ultrasonic USM technology is recognized for its quick, precise, and quiet autofocus operation. This makes USM lenses particularly suitable for photography and videography where speed, accuracy, and low noise are essential.

   What Is a Canon USM Lens (+ Do You Need One?) - Shotkit

   shotkit.com/canon-usm-lens/

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   How does the Canon RF 200-800mm f/6.3-9 IS USM work?

   • Here’s how it works. The Canon RF 200-800mm f/6.3-9 IS USM is the reigning superzoom champion in terms of focal range and is impressively lightweight and compact for its reach. However, its mediocre maximum aperture does limit its usefulness in low-light performance.

   Canon RF 200-800mm f/6.3-9 IS USM review: all hail the new superzoo…

   www.digitalcameraworld.com/reviews/canon-rf-200-800mm-f63-9-is-usm-review

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   Which RF Tele F2.8 F4L IS USM?

   • Canon also has a pair of heavy-duty RF 400mm F2.8L IS USM and RF 600mm F4L IS USM on its books, at a time when the Z 100-400mm f/4.5-5.6 S is the solitary Nikon Z-mount super-tele on the market.

   Canon RF 100-400mm f/5.6-8 IS USM review - Digital Camera World

   www.digitalcameraworld.com/reviews/canon-rf-100-400mm-f56-8-is-usm-review

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   Which Canon lenses have USM technology?

   • The first lens to feature this technology was the EF 300mm f/2.8L USM, introduced in 1987. Since then, Canon has produced a range of lenses featuring USM technology, including both their premium ‘L’ series lenses and more affordable options.

   What Is a Canon USM Lens (+ Do You Need One?) - Shotkit

   shotkit.com/canon-usm-lens/

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   Which lens is better STM or USM?

   • The “better” option depends on your needs. STM lenses are typically better for video due to their silent and smooth focus, while USM lenses are often better for still photography due to their speed and precision. Canon IS vs USM Lens: What’s the Difference?

   What Is a Canon USM Lens (+ Do You Need One?) - Shotkit

   shotkit.com/canon-usm-lens/

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   Why should you buy a USM lens?

   • This makes them a good choice for situations where noise can be disruptive, such as during video recording or in quiet environments. Precision: The USM motor offers precise control over the lens elements, allowing for very accurate focusing. This can result in sharper images.

   What Is a Canon USM Lens (+ Do You Need One?) - Shotkit

   shotkit.com/canon-usm-lens/

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10. www.the-digital-picture.com › Reviews › LensCanon RF 100-400mm F5.6-8 IS USM Lens Specifications and ...

    www.the-digital-picture.com › Reviews › Lens

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    Review manufacturer specifications and detailed lab measurements for the Canon RF 100-400mm F5.6-8 IS USM Lens. Compare the specs and measurements of this lens with other lenses.