Fujifilm Patents Fujinon XF 300mmF2.8 OIS, XF 400mmF4 OIS, XF 600mmF6 OIS (APS-C) and Fujinon GF 300mmF2.8 OIS (Medium Format)

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Do you remember when Fujifilm patented the Fujinon XF300mm f/4 and XF500mm f/5.6 a couple of years ago?

And despite my warnings telling you not to expect such lenses soon (if ever), there are still a good amount of people who believe these patents are a strong indication for that gear to come soon.

So I will never be tired to make disclaimers: in 99,999% of the cases those patents never see the light of the day in a real product.

In fact, in over a decade of covering patents here on FujiRumors, I have seen 1 patent out of hundreds become real… and that patent was actually found only after Fujifilm released that gear.

Does this mean that covering patents is useless?

Yes… if you see it from the point of view of gear to come in future. You better look at our rumors for that purpose.

Any yet, these patents are a nice way to let us discuss on what Fujifilm should do in future and if such lenses would be appreciated among the Fujifilm community.

So down below are one by one all the latest patents.

Patents

Filed by: Fujifilm Corporation
Publication number: P2022-167114A
Application number: P2021-72676
Release Date: 2022.11.4
Name of invention: Imaging lens and imaging device

  • [Issue] We will provide a telephoto imaging lens with good optical performance but also designed to reduce weight, and an imaging device with this imaging lens.
  • In recent years, telephoto imaging lenses with good optical performance and lightweight components have been requested.
  • This disclosure is based on the above circumstances, and the purpose is to provide a telephoto imaging lens with good optical performance but also to reduce weight, and an imaging device with this imaging lens.

Fujifilm XF 300mm f/2.8 OIS (APS-C)

  • Example 1 (for 300mm f/2.8 APS-C)
    Focal length: 290.922
    Back Focus: 47.006
    F Number: 2.89
    Maximum total angle of view: 6.2

Fujifilm XF 300mm f/4 OIS (APS-C)

  • Example 2 (for 300mm f/4 APS-C)
    Focal length: 290.926
    Back focus: 64.029
    F number: 4.16
    Maximum total angle of view: 6.2

Fujifilm XF 400mm f/4 OIS (APS-C)

  • Example 3 (for 400mm f/4 APS-C)
    Focal length: 389.546
    Back Focus: 54.074
    F number: 4.13
    Maximum total angle of view: 4.6

Fujinon XF 600mm f/6 OIS (APS-C)

  • Example 4 (for 600mm f/6 APS-C)
    Focal length: 581.587
    Back focus: 61.499
    F number: 6.01
    Maximum total angle of view: 3.2

Fujinon GF 300mm f/2.8 OIS (MF)

  • Example 5 (300mm f/2.8 medium format)
    Focal length: 291.010
    Back focus: 66.653
    F number: 2.90
    Maximum total angle of view: 10.8

via j-platpat via digicame-info

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