Indispensable for protecting your valuable lenses, this cap should be used on all lenses with a 52mm filter size Compatible with
-- EF 135mm f/2.8 with Softfocus-- EF 28mm f/2.8-- EF 35-80 4.0-5.6 III-- EF 35mm f/2-- EF 50mm f/2.5 Compact Macro