Canon RF 50mm f/1.4 L VCM: B&H Photo / Amazon / Adorama
A patent was found for what is like the Canon RF50mm F1.4 L VCM lens. You can check the patent out below:
overview
- [Publication number] P2025121460
- [Release date] 2025-08-20
- [Title of invention] Optical system and imaging device
- [Application date] 2024-02-07
- [Applicant]
[Identification number] 000001007
[Name] Canon Inc. - BACKGROUND ART
[0002]
Imaging requires optical systems that are compact and have high optical performance despite their large aperture ratio, and such optical systems are also required to perform high-speed focusing (autofocus). - [0005]
In optical systems with a large aperture ratio, it is difficult to correct various aberrations. In particular, when the focus lens group is made lighter to enable high-speed focusing, it becomes difficult to suppress aberration fluctuations when focusing from an object at infinity to an object at a close distance. - The present
invention provides a compact optical system that has a large aperture ratio, is lightweight, and is capable of high-speed focusing, and an imaging apparatus equipped with the same.
Example 1
- Focal length: 49.50
- F-number: 1.46
- Half angle of view: 24.04
- Image height: 21.64
- Total length: 117.49
- Back focal length: 14.66
via asobinet