Canon Patent for EF-S 9-18mm f/4.5-5.6 Lens
Egami has discovered a new patent filed by Canon. The new patent describes a EF-S 9-18mm f/4.5-5.6 lens which is designed for APS-C sized sensored DSLR cameras.
The lens looks very similar to the recently announced the EF-S 10-18mm f/4.5-5.6 IS STM (see samples) lens which is also designed for APS-c DSLRs. If the patent becomes live in production, this 9-22mm lens will have a longer and wider zoom range than the 10-18mm.
The Canon EF-S 10-18mm f/4.5-5.6 IS STM Lens price is $299. See patent details below.
Canon EF-S 9-18mm f/4.5-5.6 Lens Patent
- Patent Publication No. 2014-225002
- Published 2014.12.4
- Filing date 2013.4.25
- Canon patent
- 4-group configuration of negative positive and negative positive
- Inner focus
- And a plastic aspherical first lens group
According to the present invention, the change in imaging magnification upon focusing on less, high speed focusing is obtained zoom lens easy wide angle.