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Canon Patent: 50mm f/1.8 Image Stabilized Lens

Egami (translated) spotted a Canon patent for a 50mm lens with f/1.8 and image stabilization. The patent does in some way fit with a rumor regarding a new image stabilized Canon 50mm lens said to be announced in 2013. Another Canon patent for a 50mm lens I reported about can be seen here. Canon has three 50mm lenses in their line-up: the EF 50mm f/1.2L, EF 50mm f/1.4 and the inexpensive EF 50mm f/1.8. The lens described in the patent will not replace the 50mm f/1.2L nor the 50mm f/1.8, most probably it will replace the 50mm f/1.4 (I don’t think Canon will add a fourth 50mm lens to their line-up).

  • Patent Publication No. 2013-142782
    • Publication date 2013.7.22
    • Filing date 2012.1.11
  • Example 1
    • Focal length f = 51.51mm
    • Fno. 1.85
    • Half angle ω = 22.78 °
    • Image height 21.64mm
    • The overall length of the lens 76.78mm
    • BF 37.84mm
    • 8 pieces of 7 lens configuration
  • Canon patent
    • (Optical system of the anti-vibration unit is located between the aperture and the front lens group) and vibration-proof
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