Now we have some proof that Nikon is also working on a medium format camera, (see Canon medium format rumor here) Japanese patent hunting blog egami surfaced a Nikon Medium format Lens Patent information.
Nikon is 100 mm F2.5 Medium format Lens patent image
Nikon 100mm F2.5 Medium format lens Patent details (Translated by google)
- Patent Publication No. 2013-174794,2013-174794
- Publication date 2013.9.5
- Filing date 2012.2.27
- Example 1
- Focal length f = 100.00000mm
- Fno. 2.46
- Angle of view 2ω = 62.94 °
- Image height Y = 60.00mm
- BF 81.98720mm
- Length 254.57217mm
- Six 5-group lens configuration
- Two 3 aspherical surface
- Nikon patents
- Negative negative negative positive positive
- Rear focus
src-egami
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