... 62mm, 67mm, 72mm, 77mm, 82mm White balance lens cap for CanonModels we supply: 52mm, 55mm, 58mm,62mm, 67mm, ... light source and then snap a reference image for the use as your cameras pre-set white ... easily get beautiful balanced images without the need for bulky reference cards or lots of time on ... and warm domesReplaces lens cap - eliminating extra itemsReady for use when camera and lens come out of the ...