Overview Reviews Product Description EF 1635mm f/2.8L III USM, 1635mm Focal Length, 82mm Filter, EF Mount, Full Frame Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Canon Canon EF 1635mm f/2.8L III USM EF Mount Lens Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments