Canon Patent - EF-M 9-17mm f/3.5-5 STM Lens

Canon EF-M line of mirrorless lens

I have just returned from my Upper Amazon/Peruvian Highlands Photo Tour testing the Canon EOS-1D X Mark II camera in hot, steamy jungles and cold, two miles plus high, Andean mountains. Overall, I am quite impressed by the new body but now I have to take some time to get back to the daily routine, process the photos and get ready for my next trip to again test the camera in a whole new part of the world and environment.

Last month, I have reported on Canon's latest plans with their mirrorless camera line. Now, Egami has uncovered another new patent for an additional EF-M 9-17mm f/3.5-5 STM lens design. It may be announced before the year is up, perhaps together with the new mirrorless camera(s). It will be a good year for Canon mirrorless camera fans.

Patent Publication No. 2016-85259 (Google translated)

• Published 2016.5.19
• A wish day 2014.10.23
• Zoom ratio 1.79
• Focus distance 9.27 13.32 16.58
• F-number 3.60 4.38 5.11
• AOV 51.83 45.17 38.94
• Like high 11.79 13.40 13.40
• Overall length of the lens 85.22 79.65 81.94
• BF 14.99 16.82 15.41

Canon Patent - EF-M 15-50mm f/3.5-5.6 IS STM Lens

Canon EF-M mirrorless lens lineup

I have just returned from my Upper Amazon/Peruvian Highlands Photo Tour testing the Canon EOS-1D X Mark II camera in hot, steamy jungles and cold, two miles plus high, Andean mountains. Overall, I am quite impressed by the new body but now I have to take some time to get back to the daily routine, process the photos and get ready for my next trip to again test the camera in a whole new part of the world and environment.

Last month, I have reported on Canon's latest plans with their mirrorless camera line. Now, Egami has uncovered another new patent for an additional EF-M 15-50mm f/3.5-5.6 IS STM lens design. It may be announced before the year is up, perhaps together with the new mirrorless camera(s).

Patent Publication No. 2016-75742 (Google translated)

• Published 2016.5.12
• Filing date 2014.10.3
• Zoom ratio 2.94
• Focal length 16.00 27.43 47.04
• F-number 3.62 4.50 5.82
• Half angle of view (degrees) 37.55 26.47 16.19
• Image height 12.30 13.66 13.66
• Overall length of the lens 78.86 74.05 77.88
• BF 20.48 27.14 37.06

Canon Patent - EF and EF-M 50-300mm f/4.5-5.6 STM Lens

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