Costas, In a pinch you could do it but I don't think they exactly add up. It is conventional to expose different areas of the picture through different grade filters in succession. AZ Build a Lookaround! The Lookaround Book, 2nd ed. NOW SHIPPING http://www.panoramacamera.us > -------- Original Message -------- > Subject: Enlarger filter question > From: kpp@xxxxxxxxxx > Date: Sat, January 15, 2005 4:01 am > To: "List for Photo/Imaging Educators - Professionals - Students" > <photoforum@xxxxxxxxxxxxxxxxxxxxxx> > > a quick one. > Can enlarger filters be combined? i.e. is no1 + no2 together a no3? > thanks, kostas > > > _____________________________________________________________________________________ > http://www.mailbox.gr ÁðïêôÞóôå äùñåÜí ôï ìïíáäéêü óáò e-mail. > http://www.thesuperweb.gr Website ìå ÁóöáëÝò Controlpanel áðü 6 Euro êáé äþñï ôï domain óáò!