Canon RF Patents: 400mm, 800mm, 1200mm, 2000mm Catadioptric Lenses
Canon has filed several new RF mount catadioptric IS super telephotos lens patents for the 400mm f/3.6 IS, 800mm f/5 IS, 1200mm f/8 IS, 1200mm f/10.5 IS, 2000mm f/15 IS lenses. Canon RF 400mm f/3.6 IS Focal Length: 399.12 F-Number: 3.57 Half Angle of view: 3.10 Image height: 21.64 Overall Lens Lenght: 206.85 Back Focus: 59.29 Canon RF 800mm f/5 […]
Read more