No deterioration of the dive with this quality filter. Yet I ride on an objective whose diameter is smaller (1.2 72mm 85) that the filter (77mm) without vignetting or other appears. Note for those who would be in my case that the visor 85 1.2 just came with the filter mounted via a ring 72-> 77. No need to position the lens hood before mounting its filter which is a comfort. Why not have bought a 72mm directly? Because I and some also use it on my 24-105 77mm him that is without having to buy two filters. The ring costs $ 1.
