Canon has just filed a new patent application for Canon EF 800mm F5.6L IS II lens. This new patent will help to reduce weight, size while maintaining a high degree of optical performance and low chromatic aberrations.
- Focal distance 780.00
- F number 5.80
- a half field angle (degree) — 1.59
- Image height 21.64 whole length of the lens 485.85
- BF 128.77
- Japan Patent Application 2018-087965
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