I was wondering if someone could tell me the outer diameter of the adapter rings for the Cokin Z or Lee 100mm filter holders.

I am trying to adapt a Matte Box that someone has given me, that appears to clamp onto a ring in the 95-105mm range and am wondering if the Cokin Z or Lee adapter rings will suffice.

1 Answer 1


I reckon my Lee ones are 99mm give or take less than half a mm.

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