hey guys( and gals, the few of you on here), really basic question: I want to mount some 4x4 CC filters to the INSIDE of my LF setup when shooting some architectural projects for class(on 4x5). I have used them many a time for MF and 35, but so far, very little for LF. I have assisted for a few people in the past and they almost always mount the wratten gels inside the lens, mainly to reduce flair. Now with the digi stuff in full swing in the pro market, students like me are able to pick up some CC filters for cccccchhhhheeeeeeaaaaaapppppp!!!!!! any ideas? does wratten, lee or cokin make one for the inside? i have seen a filter holder for the outside that has a rubber band do-hickey to hold it on, any though for 4x4" gels? i'm using a 90mm 5.6 SA XL, and also a 47mm SA XL(loaner from friend). I'd like to have one holder for all lenses, or 2 so i don't have to swap all the time, etc. i use a 210, 90 xl, 150, and as stated above, sometimes a 47 xl for tight interiors. thanks!