If the paper is coming out white or too light, then you are under-exposing and you need to expose for longer.
If it's coming out too dark then you need to expose for less time.
If you are exposing with an enlarger then the lens should have an aperture setting ring with numbers like 5.6, 8, 11, 22 etc on it. Setting it to f/11 would be a good starting point.
Also perhaps you could describe what paper you are using and how you are developing it (what chemicals, in what order, for how long) in case there is a problem there.
Last edited by andrew.roos; 06-09-2012 at 07:00 AM. Click to view previous post history.