~ Converts the Filtration to Variable Contrast/Constant ExposureVCCE Dichroic Module contains Dual filtration channels in one head. Channel one is calibrated for Kodak Polycontrast III™ RC and compatible papers (grades 0-5), channel two is calibrated for llford Multigrade III™ RC and compatible papers (grades 0-5). Fits in all LPL 4550XLG and 4500-II enlargers.