Fujifilm GFX Fixed Lens Camera Lens Patents Spotted – GF35mm F3.5, GF40mm F3.5 and GF50mm F3.5

The following lens patents for the GFX have been spotted by the Japanese website asobinet.

• GF35mmF3.5
  (more precisely 33mmF3.6)
• GF40mmF3.5
  (more precisely 39mmF3.6 and 43mmF3.6)
• GF50mmF3.5
  (more precisely 51mmF3.6)

Asobinet speculates that these are patents for a fixed lens camera, since it has a short back focus.

Fellow FujiRumors readers already know that the fixed lens Fujifilm GFX will come in the first half of 2025 with a 28mm equivalent lens, which means it will be 35mm in GFX format.

All of the patents show an f/3.5 aperture, which would be a f/2.8 depth of field equivalent in full frame.

Full Patent Details

Outline

• [Public number] Special opening 2024-156550 (P2024-156550A)
• [Release date] November 6, 2020 (2024.11.6)
• [Name of invention] Image lens and imaging device
• [Date of application] April 24, 2020 (2023.4.24)
• [Applicant] [Identification number] 306037311
  [Name or title] Fujifilm Corporation
• [Issue] We provide imaging lenses that are small and retain good optical performance, and imaging equipment with this imaging lens.
• [Background technology] [0002] In the past, the imaging lens that can be used for imaging equipment such as digital cameras is known as described in the following patent document 1.
• [0004] A small camera lens that retains good optical performance is required. These levels of requirements are increasing year by year.
• [0005] The purpose of this disclosure is to provide a imaging lens that is small and retains good optical performance, and a imaging device equipped with this imaging lens.

Example 1

• Focal length: 39.170
• F value: 3.6
• Angle of view: 69.30
• Back focus: 6.596

Example 2

• Focal length: 43.691
• F value: 3.6
• Angle: 64.36
• Back focus: 5.982

Example 3

• Focal length: 50.911
• F value: 3.6
• Angle of view: 54.96
• Back focus: 13.673

Example 4

• Focal length: 32.965
• F value: 3.6
• Half-angle: 78.44
• Back focus: 7.073