Patent Canon

Patent: Canon 500mm f/4 DO IS and Canon 600mm f/4 DO IS

By Canon Rumors It seems patent applications for diffractive optic super telephoto lenses is becoming a monthly thing. Canon News has uncovered another patent application showing both a … → continue…

From:: Canon Rumors

Patent: Canon continues to work on focal length reducers

By Canon Rumors Canon continues to work on focal length reducers. What’s a focal length reducer you ask? It’s an adapter that reduces the focal length of a … → continue…

From:: Canon Rumors