Good News!!! According to the latest news from CanonNews, Canon has just filed a new patent: Canon EF 17-35mm F4-5.6 IS STM. It is a non-L zoom lens for full frame camera lineup. After the release of the Canon EF 24-105 3.5-5.6 STM lens in 2014, Canon did not produce other STM lenses for a “cheaper” series of full frame lenses for a long time.
Specification from the patent:
Canon EF 17-35mm f/4-5.6 IS STM Optical Formula
- Focal distance: 17.50 25.12 34.09
- F number: 4.00 4.85 5.88
- A half field angle (degree): 51.03 40.73 32.40
- Image height: 21.64 21.64 21.64
- Whole length of the lens: 130.88 128.52 134.05
- BF: 37.60 49.75 64.06
Japan patent application 2017-161568
Read More Canon Lens Patent
See Also 2017 Holiday Canon Lens Deals