Canon has just filed a new lens patent for 30mm F2.8 DO IS lens. This is another new full-frame mirrorless lens for the upcoming Canon full frame mirrorless camera. In last December, Canon already filed the new 50mm F3.5 Macro IS Full-Frame Mirrorless lens patent.
Detail translated by Google:
- Patent Publication No. 2016-102851
- Published 2016.6.2
- Filing date 2014.11.27
- Example
- Zoom ratio 1.00
- Focal length 31.35
- F-number 2.86
- Angle of view 34.61
- Image height 21.64
- Overall length of the lens 85.29
- BF 29.99
- Canon patent
- Positive ShiboTadashi
- Diffractive optical element (the second group of aperture stop image side)
- Correct axial chromatic aberration and lateral chromatic aberration of the near-infrared light
Source: EGI
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