Patent: Canon EF-S 20mm f/2.8 STM

Craig
1 Min Read

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Another lens patent from Canon, this time for an EF-S 20mm f/2.8. Are we going to see a series of inexpensive EF-S primes in the future? This is pretty close to the 24mm f/2.8 STM pancake though.

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

Canon patents

  • Negative ShiboTadashi
  • The pay-out the entire

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Craig is the founder and editorial director for Canon Rumors. He has been writing about all things Canon for more than 17 years. When he's not writing, you can find him shooting professional basketball and travelling the world looking for the next wildlife adventure. The Canon EOS R1 is his camera of choice.
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