Patent: Canon EF-M 15-45mm f/1.8-3.5

A patent showing a faster version of the EF-M 15-45mm has appeared in the form of three separate optical formulas. EF-M 15-45mm f/1.8-3.5 EF-M 15-45mm f/2.0-4.0 EF-M 15-45mm f/2.8-5.0 Canon News Summarizes: It also looks like it may be the first canon lens patent application that I’ve seen that specifically mentions that distortion abberation control Read more...

15-45mm ef-m patent canon

2017-11-19 16:53