Ricoh has just filed a new patent for Pentax 200mm F2.8 ED [IF] DC lens. As we all known Pentax K-1 full-frame camera is scheduled to start shipping on April 25, 2016 and Pentax is making positive effort to add more lenses for full-frame users.
- Patent Publication No. 2016-51100
- Published 2016.4.11
- Filing date 2014.9.1
- Example 1
- Focal length 200.000
- F-number 2.80
- Half angle of 6.3 °
- Image height 22.000
- BF 66.870
- Overall length of the lens 184.874
Source: EGI
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