I recently bought a Widelux F7 camera. Then last week I was able to buy four filters for it: ND, SL, Y2, and YA2 from evilBay. I did not get the indoor-to-outdoor-film [blue] nor the outdoor-to-indoor-film [orange], but I was not going to need those anyway. Now I needed a case for the filters. I took a reading glass case and added foam sheet which I cut and glued. Now I have a metal framed, magnetically clasped filter case.