Here is a new Canon patent refers to two super zoom lenses for the RF mount cameras.
Canon patent application 2022/0035144 (USA) discusses optical formulas for a 200-500mm f/4 lens and a 300-800mm f/8 lens. Other lenses discussed in the patent literature are 200-400mm f/4 and 150mm f/5 – 600mm f/6.5. These too might be for the RF mount.
See the details of the New Canon Patent for 200-500mm f/4 and 300-800mm f/8 Lenses below.
Example 1
- Focal length: 206.00-485.01
- F value: 4.09-4.10
- Half angle of view: 6.00-2.55
- Image height: 21.64
- Overall length: 486.99
- Back focus: 53.96
Example 3
- Focal length: 154.55-585.00
- F value: 5.10-6.51
- Half angle of view: 7.97-2.12
- Image height: 21.64
- Overall length: 288.00-388.00
- Back focus: 15.00-95.75
Example 4
- Focal length: 205.00-390.00
- F value: 4.10
- Half angle of view: 6.02-3.18
- Image height: 21.64
- Overall length: 367.09
- Back focus: 46.68
Example 5
- Focal length: 305.00-774.99
- F value: 8.09-8.10
- Half angle of view: 4.06-1.60
- Image height: 21.64
- Overall length: 489.78
- Back focus: 100.04
via asobinet.com