I need a line on a soft tissue filter for cephs. For many years I've been using a cassette with a built in soft tissue filter and now I'm changing over to the Phosphor Screen (PSP) system and I need a good filter. I have a leftover one from the the old "par speed" film days but it doesn't work too well with the PSP sensor. Anyone have any good ideas for me? I'm amazed that the people who sell this stuff don't have the resources at their fingertips for things like this.