Hello again. I set up my 'new' C7700 enlarger yesterday and got it working. Thanks to everyone for their advice so far. I have ordered a couple of books on this topic (Tim Rudman's book as recommended by FrankB and Lee Frost's Simple Art of Black and White Photography). Unfortunately the postal disruption here has meant there is no sign of them so I am in the dark in more ways than one. I attempted a few prints last night and thought I would share my first efforts and solicit more advice. I have scanned the prints and adjusted them (on a calibrated monitor) to look like they appear to my eyes. The first 2 were taken with a fairly low contrast lens (1959 Leica Summaron) and developed using Prescysol (staining developer). I printed at grade 2 on multigrade paper with multigrade dev (no filtration on the head), but they seem unduly low in contrast. Is this because the diffuser enlarger I have is lower contrast than I used to expect from my old condenser or is it something to do with the effect of stain (or just bad technique on my part). The last one I was much more pleased with. It is again at grade 2, but the negative was FP4 developed in a non-staining developer and taken with a Mamiya c330. But it is still not contrasty enough for my tastes and as I used the same procedures to produce this I suppose that I will need to up contrast a lot on the stained negs and a little on the non-stained ones. Does this make sense? Sorry if these seem like stupid questions, but I am eager to progress.