According to the Egami Blog, Canon has filed the optical formula patent for a EF 600mm f/4 DO IS USM.
This would be an awesome addition to Canon's super telephoto lens lineup. I think professional sports and wildlife photographers will be lining up for this lens. [Sean]
Patent Details (Google Translated)
This would be an awesome addition to Canon's super telephoto lens lineup. I think professional sports and wildlife photographers will be lining up for this lens. [Sean]
Patent Details (Google Translated)
- Patent Publication No. 2016-200685
- Published 2016.12.1
- Filing Date 2015.4.9
- Focus distance 585.00
- F-number 4.12
- Angle of View (degrees) 2.12
- Like high 21.64
- Overall length of the lens 335.32
- BF 66.92
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