Canon’s supertelephoto lenses are the stuff of legend. They have always been insanely reliable, built like tanks and optical quality that has always been superb. Somehow, with each iteration of their lenses, they get better. The Canon EF 400mm f/2.8L IS USM III and Canon EF 600mm f/4L IS USM III were the last lenses [...] The post Canon to update the RF 400mm f/2.8L IS USM and RF 600mm f/4L IS USM? appeared first on Canon Rumors....
Published By: Canonrumors - Yesterday