A patent for an optical formula showing  a wide angle zoom lens for a full frame mirrorless body has appeared.

It looks like this patent is for a 16-30mm f/2.8 and has a short backfocus of 11.34mm, which tells us it's not for a DSLR.

Canon 16-30mm f/2.8 Specifications: (Japan Patent Application 2018-077320)

  • Zoom ratio: 1.67
  • Focal length: 16.48-27.44mm
  • F number: 2.88
  • Half angle: 52.70 – 38.25
  • Image height: 21.64mm
  • Back focus: 12.33 – 10.00mm


Some of our articles may include affiliate links. If you purchase through these links, we may earn an affiliate commission at no extra cost to you.

Comments are closed.