Canon News has uncovered a patent for a Canon RF 17-70mm f/4-5.6 BR optical formula. This is a pretty detailed patent, and kind of interesting Read more... The post Patent: Canon RF 17-70mm f/4-5.6 BR appeared first on Canon Rumors - Your best source for Canon rumors, leaks and gossip....
Published By: Canonrumors - Thursday, 25 November, 2021