Sigma Patent For 28-85mm OS Lens For Mirrorless Cameras

Will there soon be another lens for the EOS M system? The patent was spotted by Egami (translated).

At least Sigma is working on an image-stabilized 28-85mm f/3.5-5.6 lens for APS-C mirrorless systems. Exciting news, though I am a bit puzzled because of the 28mm – rather unusual for a crop sensor camera.

• Patent Publication No. 2014-44246
  • Publication date 2014.3.13
  • Filing date 2012.8.24
• Example 1
  • Zoom ratio 2.84
  • Focal length f = 29.01-50.00-82.48mm
  • Fno. 3.63-4.59-5.78
  • Angle of view 2ω = 53.08-31.21-19.16 °
  • Image height Y = 14.20mm
  • 92.04-103.13-116.62mm overall length of the lens
  • Inner Focus (Group 4)
  • Anti-vibration (group 2)