Fujinon 35mm F4 and 28mm F4 Patents Spotted
Two patents showing a Fujinon 35mmF4 and 28mmF4 lens for a format “larger than full frame” have now surfaced and reported about at the Japanese website Asobinet.
These are patents very likely for a fixed lens GFX camera.
We remind you the Fujifilm GFX100RF features a 35mmF4 lens. Maybe you’d have prefered a 28mm lens?
Outline
- [Public number] Special opening 2025-178957 (P2025-178957A)
- [Release date] December 9, 2020 (2025.12.9)
- [Apply date] May 27, 2020 (2024.5.27)
- [Appliant]
[IDENTIFICATION NUMBER] 306037311
[Name or name] Fujifilm Co., Ltd. - [Issue] Provide a small imaging lens with good optical performance and imaging equipment with this imaging lens.
- [Background technology] [0002] Traditionally, the lens system described in patent document 1 below is known as a imaging lens used for cameras, etc.
- [Dissues that inventions try to solve] [0004] A small-sized imaging lens with good optical performance is required. These levels of requirements are increasing year by year.
- [0005] This disclosure provides imaging lenses that are small and have good optical performance, and imaging equipment equipped with this imaging lens.
Example 1
- Focal length: 28.3822
- F value: 4.12
- Angle of view: 81.4
- Back focus: 5.1540
Example 2
- Focal length: 35.6183
- F value: 4.12
- Angle of view: 80.8
- Back focus: 5.4299
Implementation example 4
- Focal length: 28.3541
- F value: 3.60
- Angle of view: 82.4
- Back focus: 6.5825
Example 7
- Focal length: 29.3800
- F value: 4.12
- Angle of view: 79.8
- Back focus: 5.9173