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Canon Working On A Full Frame Mirrorless Camera?

That's what a Patent spotted by Egami (translated) appears to suggest, if I am not misunderstanding the poor machine translation:

Canon SLR full size corresponds to 50 mm F1.2 and corresponds to the full size mirror-less 50 mm F2 of the patent is pending. Because large-diameter lens symmetrical with the axial chromatic aberration is corrected by using the anomalous dispersion glass which has been optimized, you can expect the performance. We are starting to design-conscious companies with full size mirror-less, the emergence of full-fledged full size mirror-less would be a matter of time.

Patent description:

  • Patent Publication No. 2012-247451
    • Release Date 2012.12.13
    • Filing date 2011.5.25
  • Example 1
    • Focal length f = 51.70mm
    • Fno. 1.25
    • Half angle of view ω = 22.71 °
    • Image height 21.64mm
    • 105.65mm length lens
    • BF 40.00mm
    • Nine 6 groups lens configuration
    • One one aspherical surface
    • Maximum effective diameter 45.16mm
  • Example 4
    • Focal length f = 50.00mm
    • Fno. 2.06
    • Half angle of 23.40mm
    • Image height 21.64mm
    • Length 72.62mm lens
    • BF 28.86mm
    • Eight four group lens configuration
    • No aspherical
    • Maximum effective diameter 33.34mm
  • General symmetric lens
    • Compensation of magnification chromatic aberration can be
    • Difficult to correct axial chromatic aberration and the large-diameter
  • Canon patent
    • Symmetric lens large aperture
    • Positive, aperture, arranged in the order of the positive
    • Using a high anomalous dispersion glass, the axial chromatic aberration is corrected

[via Egami]


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