Canon files a patent for a new 24-70mm F2.8L II USM lens
Canon applied for a patent in Japan for a new 24-70mm F2.8L II USM lens:
For comparison, here is the diagram of the current Canon EF 24-70mm f/2.8L USM lens:
Patent details:
- Patent publication: 2010-243636
- Patent published 10/18/2010
- Patent filled: 04/02/2009
- Focal distance: 24.54-66.07mm
- Fno (aperture): 2.91-2.92
- Angle of view: 82.8-36.26°
- Image circle: 43.28mm
- Length: 204.97-170.32mm
- Back focus: 37.06mm
