New Patent: Canon EF 600mm f/4 DO IS USM Lens

Canon has filed a new patent: Canon EF 600mm f/4 DO IS USM Lens. This will be another super telephoto prime DO lens. Last year, Canon announced the EF 400mm f/4 DO IS II USM lens, currently in stock at Amazon for $6,899.

See the patent details below:

Patent Publication No. 2015-11171

  • Published 2015.1.19
  • Filing date 2013.6.28

Example 2

  • Focal length 588.30mm
  • Fno. 4.12
  • Angle of view 2.11 °
  • Image height 21.64mm
  • Lens length 397.80mm
  • BF 2.02mm
  • Positive ShiboTadashi
  • Inner focus
  • Vibration control

Flash back to 2013, Canon already filed this lens patent:

See also: Best Canon Lenses for Wildlife Photography.

via: EG

Read More: Canon Rumors