A Patent was filed for a Tamron 40-500mm f/4.5-8.2 and Tamron 50-600mm f/4.5-8.2. These lenses probably won’t come out anytime soon, but you can see renderings of them above or read the patent below:
overview
- [Publication number] P2025100076
- [Release date] 2025-07-03
- [Name of invention] Zoom lens and imaging device
- [Application date] 2023-12-22
- [Applicant]
[Identification number] 000133227
[Name or company name] Tamron Co., Ltd. - A zoom lens and an imaging device are provided that achieve both high optical performance and compact product size.
- [Background Art]
[0002]
In imaging devices using solid-state imaging elements, such as digital cameras and video cameras, the number of pixels of solid-state imaging elements has been increasing in recent years, and as a result, lens systems are being required to have even higher performance than before. In addition, as cameras become more compact, there is also an increasing demand for smaller optical systems. - [0003]
Under these circumstances, zoom lens inventions have been disclosed in, for example, Patent Documents 1 to 3. Patent Document 1 discloses a zoom lens, which is a so-called standard zoom for single-lens reflex cameras. - [0006]
In the zoom lens disclosed in Patent Document 3, the lens group positioned third from the object side during magnification change is a demagnification lens, the refractive power is weak, and the movement distance of each lens group is large. For this reason, it is difficult to miniaturize the product of the zoom lens described in Patent Document 3. - [0007]
Therefore, an object of the present invention is to provide a zoom lens and an imaging device that achieve both high optical performance and compactness of the product, even in a zoom lens with a magnification ratio exceeding 10 times.
Example 1
- Focal length: 28.826-291.040
- F value: 3.956-7.300
- Half angle of view: 38.281-4.056
Example 2
- Focal length: 41.208-388.127
- F-number: 4.100-7.300
- Half angle of view: 27.966-3.101
Example 3
- Focal length: 18.543-290.998
- F value: 3.481-8.212
- Half angle of view: 38.938-2.731
Example 4
- Focal length: 41.248-485.008
- F value: 4.605-8.200
- Half angle of view: 18.966-1.640
Example 5
- Focal length: 51.518-582.185
- F-number: 4.600-8.200
- Half angle of view: 15.399-1.376
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