Ricoh recently filed a patent in a Japan for a 100-300mm f/4 full frame lens that is most likely designed for the Pentax K-1 DSLR camera. Here are the details:
- Patent No. 2016-80717
- Published on May 16th, 2016
- Filing date: October 9th, 2014
- Zoom ratio: 2.87
- FNO (aperture): 4.1 – 4.1 – 4.1
- f (focal length): 102.00 – 200.01 – 293.01
- L (length): 279.45 – 279.44 – 279.44
Ricoh also had a recent patent for a 200mm f/2.8 full frame lens.
