Ricoh filed a patent for a 200mm F2.8 lens for fullframe sensor camera. As we all know that Pentax K-1 is now available in stores and Rioch / Pentax making positive effort to add more lenses to attract more fullframe users.
Ricoh / Pentax Patent 200mm F2.8 Lens details
- 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
See more Pentax patent, also see Pentax K-1 DSLR User Manual, PDF Guide
source – egami
