Fujinon XF 50-135mmF2.8, XF 18-300mmF3.5-6.3 and XF 18-135mmF3.5-5.6 Patents Spotted
New Fujifilm patents surfaced on the web and shared by the Japanese website asobinet.
- Fujinon XF 18-300mm F3.5-6.3
- Fujinon XF 50-135mm F2.8
- Fujinon XF 18-135mm F3.5-5.6
I will share all the details below after some personal thoughts about them.
Fujinon XF 18-300mm F3.5-6.3
This patent is nothing new, as we could see one already back in 2023 here (just 6.5 instead of 6.3 on the long end), along with the patents for other lenses such as the Fujinon XF 16-150mm f/4-6.5 OIS and Fujinon XF 16-200mm f/3.5-6.5 OIS.
Yes, there is already the lovely Tamron 18-300mm f/3.5-6.3, so probably this lens would not be a top priority in my mind. Although, when I once talked to a “prime-purist” like SonyAlphaRumors, he told me “the only zoom lenses that make sense are the superzooms“.
If you are also of that opinion, than having more superzoom options also coming from Fujifilm (with an aperture ring), then this could be a very interesting lens.
Fujinon XF 50-135mmF2.8
While the original Fujinon XF50-140mmF2.8 is definitely a stellar performer, I would definitely welcome a MKII version.
I mean, also the XF16-55mmF2.8 got its MKII version: smaller, lighter and even optically better in many areas over its predecessor.
So if Fujifilm could pull this off also for the XF50-140mmF2.8 replacement, that would be great.
Just one thing: in this patent the XF50-135mmF2.8 has not an internal zoom (although it does not protrude significantly). It would be great if it would be an internal zoom lens.
Fujinon XF 18-135mm F3.5-5.6
As a happy owner of the Fujinon XF 18-135mm F3.5-5.6 MKI, I would definitely appreciate the arrival of a MKII version.
The new version in this patent has a different optical design.
Also here, make it more compact, even better optically, and I would definitely upgrade to a MKII version.
Patent Details
With that said, here are the full details of the patents
Outline
[Public number] P2025018369[Release date] 2025-02-06
[Name of invention] Zoom lens and imaging device
[Date of application] 2023-07-26
[Applicant] [Identification number] 306037311
[Name or title] Fujifilm Corporation
[Issue] We provide a zoom lens that is small and retains good optical performance with various aberrations, and a imaging device equipped with this zoom lens.
[Background technology] [0002] Previously, the zoom lens that can be used for imaging equipment such as digital cameras is known as described in the following patent document 1.
[0004] A zoom lens that is small and maintains good optical performance by correcting various aberrations is required. These levels of requirements are increasing year by year.
[0005] This disclosure is made in view of the above circumstances, and provides a zoom lens that is small, has various aberrations corrected and retains good optical performance, and imaging equipment with this zoom lens.
Example 1
Focal length: 48.42-127.79
F value: 2.88-2.89
Angle of view: 34.0-12.4
Back focus: 22.92
Example 8
Focal length: 18.50-130.77
F value: 3.60-5.81
Angle of view: 81.0-12.6
Back focus: 20.03
Example 11
Focal length: 17.55-275.58
F value: 3.51-6.30
Angle: 85.2-5.8
Back focus: 12.02-57.03
