Sigma has just filed a new patent for Sigma 18-50mm F2.0 DC DN lens. (via asobinet)
Summary
- [Public number] P2022038820
- [Name of invention] Large aperture zoom lens
- [Dapplication date] 2020-08-27
- [Applicant] [Identification number] 000131326
[Name or name] Sigma Corporation - [Issue] We provide a small large aperture zoom lens that is suitable for digital cameras and video lenses, with good aberrations and can be used for quick focus operation.
- [0015] This invention is based on a positive lead zoom lens for the above challenges, suitable for digital cameras and video lenses, with good aberrations, and quick focus movement, small large apertures. The purpose is to provide a lens.
Example 1
- Focal length: 18.50-48.50
- F value: 1.94-2.10
- Angle of view: 77.86-31.58
- Statue height: 14.20
- Total length: 115.36-137.89
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