I understand that Aristo used to make a cold light head for the Beseler Printermaker 67 (35) enlarger. I'm having no luck finding one. Anyone know the proper Aristo stock number for it? Any other sources of cold light for it? I use it ONLY to print my 1/2 frame 35mm and 16mm negatives - I have a couple of Beseler 23Cs set up with cold lights but need to do the same for the Printmaker 35. I do have the color head but would prefer a true cold light head.