Patent: Canon EF-S 20mm F2.8 STM

Canon EF-S 20mm F2.8 STMCanon has just filed a new patent of  EF-S 20mm F2.8 STM lens.  It is similar to the current Canon EF-S 24mm F2.8 STM lens. We hope this will be the next pancake lens for Canon APS-C DSLRs.

Patent Publication No. 2015-111192 (Google Translated)

  • Published 2015.6.18
  • Filing date 2013.12.6

Example 3

  • Focal length 20.65mm
  • Fno. 2.88
  • Half angle of view ω = 33.48 °
  • Image height Y = 13.66mm
  • Overall length of the lens 64.00mm
  • BF 35.30mm

Source: EG

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