Canon new full frame lens patent surfaced over the web of 1000 mm f 5.6 aperture DO lens. This is not the new are seeing a DO Lens patent several DO lenses patent as you can see here.
Description, self-interpretation of the patent literature
- Patent Publication No. 2016-102852
- Published 2016.6.2
- Filing date 2014.11.27
- Example
- Zoom ratio 1.00
- Focal length 950.00
- F-number 5.80
- Angle of view 1.30
- Image height 21.64
- Overall length of the lens 485.94
- BF 0.40
- Canon patent
- Positive and negative Shibomake
- Diffractive optical element (first group)
- Inner focus (the second group)
By the way just few days ago we have published Photokina 2016 Rumor