Just out of curiosity I asked that question when I bought one a few years ago. I was told that unless I requested otherwise (and paid more) it would be a Tiffen filter. Seems to me the other choice offered was Heliopan. You could just call Kirk and ask what they're doing now. --------------- ORIGINAL Question Date: Sun, 24 Jan 1999 15:12:53 -0500 From: Ron Goodman <[EMAIL PROTECTED]> Subject: F5 future, Anniversary model and Circ-Pol for 300 f/4 [v04.n211/16] [v04.n213/1] Message: 1 Kirk makes a 39mm drop-in polarizer that can be adjusted in place, but I don't know who makes the glass for it.
