You're welcome
Just thought of another accessory which you might like, altho' I wouldn't say you absolutely need it ... Cokin also make hoods that you can attach to the filter holder. Since you can't use a normal lens hood while using your P-Series filters, the Cokin hoods can be useful if you like to use a hood. You can even stack them for longer lenses (obviously not with a wide angle lens) 'cos they're only short (about 1"). I have 2 but have never used them ... come to that, I've never used my P-Series filters yet either
... had a play with them in the garden once, but that doesn't really count
