Photographic Filters

[gabrielh]

So, to be sure, it is best to take B+W? As I think the vendor of the local shop don't know either... Thanks!

 

[zen_and_ink]

I used to use the Cokin P series filter system. I was quite happy with it, the holder even has multiple slots, so that you can stack filters.
http://www.cokin.com/index.html

 

[gabrielh]

Thanks for the answer! I will go to the local store to check this out in real life!