Good News!!! According to the latest rumors from NI,Canon has just filed a new patent: Canon 400mm F/5.6 MIRROR (Catadioptric) Lens.
Specification from the patent:
- Focal length: 400mm
- Aperture: f/5.6
- 2 ω: 1.96
- Image height: 13.66mm
- Back focus: 33.07mm
- Lens length: 247.73mm
Read More Canon Lens Patent
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