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:Â Best Canon Lenses for Wildlife Photography.
via: EG
Read More: Canon Rumors