OK I've finally got myself some colour negatives! (Original problem was oxidised developer?) but I don't yet have a colour control box for my Paterson enlarger. It does however have a filter drawer. So what filters do I need to print in colour with a single light bulb (what are they called too!), what can I also use them for & what is possibly the better set? I went into Jessops today for new chems but they didn't know what filters I was on about except contrast filters for B&W and lens filters for cameras. Also does anyone know a good place to shop for these things in the Stockport/Cheshire area? Any help appreciated as I'm off shopping again tomorrow!