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Canon Patents Ludicrous Zooms | Canon Rumors

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Keith over at Northlight Photos factors to a patent utility that features designs for superzooms so broad in vary that they seem like variations of the legendary lens that discussion board posters generally use for example of unreasonable expectations.

A 33mm f/4 to 600mm f/7.2 lens may need beforehand been used as a tongue-in-cheek reference to an unattainable design. At this time, it is only one “embodiment” of an actual patent utility that additionally contains:

  • 24-400mm f/4-6.5
  • 24-300mm f/4-5.6
  • 28-500mm f/4-7.2
  • 30-600mm f/8

One other patent from a number of days earlier exhibits a collection of fastened aperture zooms:

  • 200-500mm f/4
  • 200-400mm f/4
  • 300-800 f/8

Canon Patent Superzoom aberration 168x168 - Canon Patents Ludicrous ZoomsHopes for L-quality picture high quality must be saved in verify, although, particularly with the thinner aperture embodiments.

The calculated aberration graphs included within the patents (instance at left) present very important distortion, and a few detail-killing astigmatism and chromatic aberration.

The brand new patents present Shunji Iwamoto because the Canon inventor. Iwamoto has been accountable for most of the agency’s latest zoom lens patents, showing to specialise in designs that contain transferring components.

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