Hi all, I started taking dark room classes last night at a high school. The thing runs for the next 7-8 weeks, so I have plenty of time to play around with the equipment. I was stupid enough to bring an undeveloped roll of color film I finished shooting last weekend, just to find out they wanted BW. Well the @#!$ course book just said "bring a roll of film"! Anyways, the night was a blast, even though I had to sit through it while everyone else got to play around with their negs. I pretty much have the basics down, but just a few more questions for you pros that I didn't think about till this morning. 1) How do you dispose of those chemicals? The guy used T-Max neg developer... Ilford multigrade print developer... some other stuff I can't remember (I wrote them down!). 2) HOW do those filters on a condenser enlarger work? What is their purpose? 3) The instructor printed one print from a BW negative using a dichroic enlarger. On the dials, he set cyan and yellow to 0, and magenta to 25, I think. I really had no idea why he did that. Can someone explain to me why he set magenta to 25? I'm such a noob at this! Thanks for any responses!