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.
For example:
- 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
Read More Canon Lens Patent
Affiliate Disclosure: Some of the links in this article are affiliate links. As an Amazon Associate I earn from qualifying purchases. This means if you click on the link and purchase the item, we may receive a small commission at no extra cost to you. This helps support our site and allows us to continue making comprehensive reviews.