Patent: Canon RF 100-400mm f/5-7.1 IS USM

Craig
1 Min Read

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I have reported many times about a small and affordable Canon RF 100-400mm zoom lens, and another patent for such an optical formula has appeared.

Canon RF 100-400mm f/5-7.1 IS USM

  • Focal length: 103.00mm 200.00mm 388.50mm
  • F-number: 5.00 6.26 7.10
  • Half angle of view: 11.86° 6.17° 3.19°
  • Image height: 21.64mm 21.64mm 21.64mm
  • Lens overall length: 215.58mm 255.38mm 293.58mm
  • Backfocus: 38.40mm 58.61mm 78.01mm

This lens has been on our RF lens roadmap for quite some time, but is listed as an RF 100-400mm f/5.6-7.1 IS USM. It will obviously be small, lightweight, and quite affordable when compared to the RF 100-500mm f/4.5-7.1L IS USM

An RF 100-400mm lens has also appeared internally at Canon and was scheduled to have already been released but has been delayed by COVID.

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Craig is the founder and editorial director for Canon Rumors. He has been writing about all things Canon for more than 17 years. When he's not writing, you can find him shooting professional basketball and travelling the world looking for the next wildlife adventure. The Canon EOS R1 is his camera of choice.
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