Sony 7.5-13mm F2.8, 8-14mm F4, and 11-16mm F4 fisheye zoom lenses
Overview
- [Publication number] P2022155067
- [Release date] 2022-10-13
- [Title of Invention] Zoom lens and imaging device
- [Application date] 2021-03-30
- [Applicant]
[Identification number] 000002185
[Name] Sony Group Corporation - A zoom lens that is compact, lightweight, and has high optical performance suitable for shooting moving images, and an imaging apparatus equipped with such a zoom lens are provided.
- 2. Description of the Related Art
In recent years, the number of pixels of an image sensor used in an interchangeable lens type digital camera system is rapidly increasing. In order to record higher-definition images, it is necessary not only to increase the number of pixels in the imaging device, but also to improve the imaging performance of the imaging lens. Therefore, there is a demand for an imaging lens that suppresses the occurrence of aberrations. In addition, an increasing number of users are using interchangeable-lens digital camera systems to shoot not only still images but also moving images. - The
zoom lens 1 according to Example 1 is suitable for a so-called full-size (screen size: 36.0 mm×24.0 mm) imaging device. The zoom lens 1 according to Example 1 realizes an equisolid angle projection circular fisheye in the shortest focal length state, and an equidistant projection diagonal fisheye in the longest focal length state.
Example 1
- Focal Length: 7.55-12.59
- F-value: 2.90-2.89
- Half angle of view: 95.00-95.00
- Image height: 11.30-21.63
- Total length: 98.26-94.54
Example 2
- Focal length: 7.50-13.48
- F-value: 4.09-4.08
- Half angle of view: 95.00-95.00
- Image height: 11.30-21.63
- Overall length: 96.50-103.15
Example 3
- Focal length: 8.13-14.07
- F-value: 4.05-4.03
- Half angle of view: 87.50-87.50
- Image height: 11.30-21.64
- Total length: 102.12-98.45
Example 4
- Focal Length: 11.10-16.00
- F-value: 4.12-4.12
- Half angle of view: 88.80-88.80
- Image height: 11.40-21.63
- Total length: 115.00-95.54
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