Hello people, I'm having an issue with split-filtering. I have a Beseler 23C XL color enlarger, and I was wondering if anyone else has experienced blurring of the image due to turning the knobs (to chage from full M to full Y) when split-filtering, and if anyone has come up with a solution. I would rather not use the cheapo gel filters, or muddle up the image by mixing M and Y in the same exposure. peace. Bill.