Canon patent for EF 300 f/4L IS II
- Patent Publication No. 2011-70032
- Published 2011.4.7
- Filled 2009.9.25
Specifications
- Focal Distance: 294
- Fno: 4.14
- Half angle of view:4.08
- Image Height: 21.64
- Lens Length (mm): 225
- Back Focus (mm): 83.12
- Aspherical: 1
Needed? Not really. However the 300 f/4L IS is a great performer and a decent seller for Canon. Adding updated IS to the lens would make most buyers very happy. Not sure it would be upgrade worthy.
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Canon EF 300 f/4L IS $1399 at B&H
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