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Nov 23, 2021 · Verdict. The sheer number of Canon RF-mount super-telephoto lenses puts Nikon to shame. 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.
Compared to my big, beloved EF 100-400mm f/4.5-5.6L IS II, this RF 100-400 is just as spectacularly sharp and focuses as blindingly fast, and the RF lens is less than half the weight (635g versus 1,550g) and less than one-third the price ($649 versus $2,399)!
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.
Sep 19, 2006 · Ring type USMs: Image not available. Click here to go to its original location (external website). The other (and lesser) type USM is known as a "micro-USM". This is a form of USM motor that Canon designed for their less expensive lenses so they can bill them as "ultrasonic" - essentially for marketing purposes and to cash in on the reputation ...
Jan 30, 2022 · Try looking at this comparison charts: The-Digital-Picture.com Canon RF 100-400mm F5.6-8 IS USM Lens Image Quality. Judging from the charts above, the RF100-400 with 1.4X gives a similar IQ to the EF II with the 2X converter, which is pretty reasonable, IMO, depending on your pixel-peeping level.
Jan 23, 2024 · The Canon RF 100-400mm F5.6-8 IS USM Lens vs. Canon RF 100-500mm F4.5-7.1 L IS USM Lens comparison shows obvious strong differences. Smaller size and lighter weight are two major advantages the RF 100-400 holds.
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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.
