A new Canon patent for the EF-M 50-300mm f/4.5-5.6 DO lens has been discovered. This design can fit both EF-M and EF-S mounts. In addition, recent Canon patents for EF-M cameras include EF-M 9-18mm f/3.5-4.5 STM and EF-M 16-80mm f/2.6 lens.
Patent Publication No. 2016-57444 (Google Translated)
- Published 2016.4.21
- Filing date 2014.9.9
Example 1
- Zoom ratio 5.59
- Focal length 51.77 135.00 289.53
- F-number 4.65 5.05 5.85
- Half angle of view (degrees) 14.78 5.78 2.70
- Image height 13.66 13.66 13.66
- The total lens length 126.05 169.37 184.15
- BF 35.50 35.50 35.50
Example 2
- Zoom ratio 5.90
- Focal length 49.13 135.00 290.00
- F-number 4.65 4.95 5.85
- Half angle of view (degrees) 15.54 5.78 2.70
- Image height 13.66 13.66 13.66
- The total lens length 108.00 152.12 168.00
- BF 15.69 15.69 15.69
No comments:
Post a Comment