Zeiss Milvus 1.4/35 for Canon
This is a Zeiss lens that is equipped with a Canon EF mount. If you want to use a filter on the lens, then the filter size is 72 mm.
Nikon FCanon EF
This is a Zeiss lens that is equipped with a Canon EF mount. If you want to use a filter on the lens, then the filter size is 72 mm.