
Canon filed a patent for a EF-M 70-400mm f/4.5-7.2 STM lens designed for APS-C mirrorless camera. Canon also filed a patent for a 20-100mm f/4 lens designed for APS-C based cameras. Canon filed a patent for eliminating the star trails during long time exposures of the night sky. Tamron filed a patent for a 18mm f/2.8 […]