M33 Triangulum Galaxy with the William Optics SpaceCat and #ZWO...

M33 Triangulum Galaxy with the William Optics SpaceCat and #ZWO ASI071 Cooled Camera and a really old Celestron UHC/LPR filter with longpass bands at 450-550 and 600-700–not the dual narrow band passes of a high-end color filter, but not terrible. This still brings out the OIII and Ha colors, which would be washed out in the fill mix of broadband with the IR/UV Cut filter.