Filters (sold separately) Use a Canon circular polarizing filter PL-C B. TS-E50 mm f/2.8L MACRO and TS-E90mm f/2.8L MACRO: 77 mm TS-E135mm f/4L MACRO: 82mm
Hood (TS-E24mm f/3.5l II) A hood is not available for TS-E17mm f/4L. The EW-88B lens hood can keep unwanted light out of the lens, and also protects the lens from rain, snow, and dust.