Here is another Canon patent application for RF-mount lenses. This patent describes the RF 80-240mm f/3.5 lens which will be a telephoto zoom lens for EOS R system.
Just like the Canon RF 30-600mm f/4-8 Lens, if goes in mass production, this will be identical to the Sigma 60-600mm f/4.5-6.3. Let’s see if we see it in production. Till then see below the patent details for the Canon RF 80-240mm f/3.5 Lens :
Example 1
- Focal length: 72.00-194.00
- F value: 2.92
- Half angle of view: 16.72-6.36
- Image height: 21.64
- Overall length: 185.00-255.23
- Back focus: 16.68-70.96
Example 2
- Focal length: 72.00-194.00
- F value: 3.5
- Half angle of view: 16.72-6.36
- Image height: 21.64
- Overall length: 185.00-255.16
- Back focus: 15.63-65.11
Example 3
- Focal length: 80.29-232.85
- F value: 3.5
- Half angle of view: 15.08-5.31
- Image height: 21.64
- Overall length: 222.75-325.37
- Back focus: 11.49-64.12
via asobinet