Sigma has just filed a new patent for Sigma 14mm F3.5 lens. This is a wide angle lens for APS-C Mirrorless cameras.
- Patent Publication No. 2016-139087 (Google Translated)
- Published 2016.8 .4
- Filing date 2015.1.29
- Example
- INF 200mm
- Focal length 13.98 13.28
- F number 3.53 3.54
- Total angle of view 2ω 90.74 92.90
- The image height Y 14.20 14.20
- Overall length of the lens 89.25 89.25
- BF 17.5750
Source: EGAMI
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