I'm working on my first setup that will hopefully allow me to do 4x5 contacts. I'll keep it down to basics: darkness, frame, few trays and Adox or Ilford of some sort (not ready to splash on Azo just yet). My bold guess would be I'll also need a Bulb. But what kind of and how far above the frame? The basic exposure guideline to start with would be much appreciated (20sec?). I'm total newbie in this stuff (currently in transition from digital to chemical) so your patience is much appreciated. Hack I developed my first 4x5 in tray full of pyrocat just last week!