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

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We know Canon is working on a small and affordable Canon RF 100-400mm zoom lens, and we have already seen two RF 100-400mm lens patents in the past two years: RF 100-400mm f/3.5-5.6L IS USM Lens and RF 100-400mm f/5.6-7.1 IS USM Lens.

Now here is another patent for the RF 100-400mm f/5-7.1 IS USM Lens. You can see the patent details below.

  • 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

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Via: CanonRumors