Canon filed a new patent in Japan. The new patent describes the EF-S 55-200mm f/4-6.3 STM lens which looks like to be a new budget-friendly zoom lens for APS-C sensor Canon DSLRs.
The patent application shows the details of a zoom lens covers a popular range starting from 55 to 200mm. We can also say the upcoming EF-S 55-200mm f/4-6.3 lens will feature STM motor for silent and fast AF operation.
Canon EF-S 55-200mm f/4-6.3 STM Lens Patent
- Patent Publication No. 2015-197655
- Published 2015.11.9
- Filing date 2014.4.3
- Example 1
- Zoom ratio 3.68
- Focal length 54.36 133.00 199.99
- F-number 4.14 5.22 6.32
- Half angle of 14.11 5.86 3.91
- Image height 13.66
- Overall length of the lens 129.39 161.77 167.04
- BF 46.78 66.90 78.18