Certainly I can. But because it is a polarizer, the front of the filter turns, hence the cokin system turns as well. Then turning the cokin system for an ND grad turns the polarizer. It is, at best, clumsy, and at worst, unusable. Andrew On Tue, January 29, 2013 2:27 pm, Randy Little wrote: > why not just mount the filter before the cokin adapter? > > Randy S. Little > http://www.rslittle.com <http://reel.rslittle.com> > http://www.imdb.com/name/nm2325729/ > > > > > > On Tue, Jan 29, 2013 at 1:48 PM, <asharpe@xxxxxxxxxxxxxxxx> wrote: > > >> Hi Emily, >> >> >> Yes, I can buy a better quality filter (and filter system), but if I >> already *have* good quality screw-in filters, then I should be able to >> use them without poring money into a system I don't really need. I guess >> I'm >> just surprised that there isn't such a simple device. >> >> Andrew >> >> >> >> >> On Tue, January 29, 2013 11:21 am, Emily L. Ferguson wrote: >> >>> Why don't you buy a Singh Ray polarizer for your Cokin filter holder? >>> They make the finest filters in the business with the most neutral >>> color cast. >>> >>> -- >>> Emily L. Ferguson >>> mailto:elf@xxxxxxxxxxxxxxxxxx >>> >> >> >