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The ND values of the three filters are different. In order to avoid the phenomenon that the wide-angle camera and the medium-telephoto camera are properly exposed and the telephoto camera is under-exposed, the light reduction values of the three lenses are slightly different. For example: ND8 for wide angle, ND8 for medium telephoto, ND0 for telephoto ND16 for wide angle, ND16 for medium telephoto, ND8 for telephoto ND32 for wide angle, ND32 for medium telephoto, ND16 for telephoto Wide-angle ND64, medium telephoto ND64, telephoto ND3 The ND & PL filter is also the same as the ND value distribution of the ND filter 

Hi, this is a completed Suqare filter X PRO System, with a filter holder, filter, filter adapter rings, and filter pouch, if you want an individually filter holder or filter, we are also on sale. 

it fits in a 100 mm square filter mount, so it depends on the size of the mount adapter to the lens 

1. You could consult us or search the mount information online
2. You could find the mount information on your instruction book when purchase the lens/camera
3. The mount information may be showed on front of the lens, side of the lens, rear of the lens or on the lens cap, usually it is a 2 or 3 letter code such as: CN, FD, OM, MAF, NK, N/AIS or F/AX