Tamron has filed a patent for a 10mm f/2.8 fisheye lens
Patent Publication No. 2014-52503
- Publication date 2014.3.20
- Filing date 2012.9.6
Example 1
- Focal length f = 9.712
- Fno. = 2.85
- Half angle ω = 90.00 °
- 10 pieces of 8-group lens configuration
- Two four-sided aspherical
- Three LD glass
- Three-group structure of the positive and negative positive
- Inner focus
- Vibration control
- Video support
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