Marine Camera sells a Cokin P filter holder that has been modified to attached to the strobes. I modified a Lee filter holder ring and use the Lee holders instead. Cokin P filters are much less expensive than Lee's. B&H is a good source for filters in the US. You may need to plan on some long lead times on the strobe filters.
ok, Thanks Craig for the heads-up.
I gotten the Cokin P holder, but could you enlighten me on
how this can be attached to the D180 or Z220?