1 of 1 people found the following review helpful
excellent, and needn't be fiddly,
This review is from: Cokin BP-400 P Series Filter Holder (Electronics)
I have only just started using these cokin filters (though I bought Kood holders, as they are a little cheaper).
I do agree that it can be a little difficult to keep the filters clean, but other than that I would say these are easier, quicker, and less fiddly than the usual screw in filters. The trick is to just leave the holder on the lens (perhaps not permanently, but certainly while you are out).
Then adding a filter is just a case of sliding it in, so no harder than screwing a filter in.
Regarding taking the holder off, this is easy enough. In most cases (though perhaps not on the bigger filter sizes) you should be able to grip and turn the adapter.
Note: if you have anything wider than a standard zoom, you may want the wide holder instead.
Note 2: some people wonder whether to get a polariser for the cokin system, or to use a standard screw in one. I bought a hoya screw in one. When I went out photographing landscapes, on my own, with my tripod, this worked really well with the coking holder than screwed into that. However, when I went out with my girlfriend, and was alternating between taking snap shots, sometimes in low light (not wanting polariser) and taking landscapes, it was a pain switching over. So if you will consistently want the polariser, the hoya may be better (I've heard they are better than cokin) but otherwise getting a cokin polariser might be more convenient.
Finally, I also agree with the other reviewer who preferred the Hitech filters to the cokin ones.