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

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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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