I picked up a D2 with a cold head, 4x5 negative carrier, and 150mm lens today off of Craigslist for a song. I tried it out tonight and I'm struggling a little bit with settings. This thing is BRIGHT! f/22 for 10 seconds seems to be in the ballpark for an 8x10 on RC paper. 10 seconds is still short to me should I want to do dodging and burning, as well as being hard to get fine control over exposure. I do have one more stop on the lens but I'm concerned about sharpness stopping down all the way. Also, is there any way/need to use Polycontrast filters on these? I'd like to add a little more contrast to the prints. I use a PCS-150 for 35mm so controlling contrast is easy. On Ilford paper just turn down the blue and turn up the green; done!