The latest Sigma patents: 12mm f/2.8 full-frame lens, new anti-reflection lens coating and Micro Four Thirds lenses
Sigma has a new patent P2018-189733A for 12mm f/2.8 full-frame lens:
- Focal length: 12.42 mm
- F number: 2.93
- Angle of view: 120.49
- Image height: 21.63 mm
- Lens length: 169.4 mm
Sigma has a patent for two new Micro Four Thirds lenses: 14mm f/1.2 and 35mm f/1.2:
- Focal length: 13.92 mm
- F No.: 1.28
- 2ω: 81.14
- Image height: 10.82 mm
- Lens length; 105.02 mm
and:
- Focal length: 34.98 mm
- F No.: 1.28
- 2ω: 33.12
- Image height: 10.82 mm
- Lens length; 110.14 mm
Sigma filed a patent P2018-101132A for anti-reflection lens coating using mesoporous silica similar to Nikon's Nano Crystal Coat and Canon's "Air Sphere Coating".
Via hi-lows-note
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