Canon has submitted a patent application in Japan for a series of fast, supertelephoto prime lenses that reduce the size of the current EF and RF versions of the 300mm f/2.8, 400mm f/2.8 and 500mm f/4. RF 400mm f/2.8L IS USM II The 400mm f/2.8L IS USM in this optical design is down about a […] The post Canon RF 400mm f/2.8L IS USM II May Have Appeared in Latest Patent appeared first on Canon Rumors....
Published By: Canonrumors - Yesterday