There is a new Canon patent filed and it is related to the RF-S 18-45mm f/4.5-6.3 Lens. As you might guess this lens will be designed for APS-C mirrorless cameras. See the patent details below.
[Publication number] JP 2021-162822 (P2021-162822A)
[Publication date] October 11, 2021
[Patent application title] Optical system and imaging device
Embodiment 1
- Focal length: 18.53-43.65
- F value: 4.54-6.50
- Half angle of view: 33.78-17.38
- Image height: 12.40-13.66
- Overall length: 92.00-83.05
- Back focus: 30.20-51.20
Embodiment 2
- Focal length: 20.01-43.64
- F value: 4.60-6.50
- Half angle of view: 31.79-17.38
- Image height: 12.40-13.66
- Overall length: 90.65-80.61
- Back focus: 32.94-50.55
Via: Asobinet