I just sold a similar package and thought I'd offer a complete color separation kit in one listing at a super discounted price. The 29 RED 47 BLUE and 61 GREEN divide the spectrum into primary colors, each passing its color band and little other light. The filters are in Kodak metal filter frames that fit the Kodak Filter Frame Holder that has 67mm threads to attach to your lens. The filters are in good to very good condition with visible scuffing but are still quite useable. Individual priced items would amount to much more. Ready for action!