For a single black and white film, I have standardized on Ilford XP2 Super. I Shoot it at 200 iso, not 400 iso. It is incredible. This is a C41 film, processed in color chemistry. I simply take it to a nearby one hour photo shop and wait about 10 minutes for them to process it in C41 chemistry. I then scan the 120 or 35mm negs. Life is beautiful with this set up. No more darkroom for me. My Leica M3 or Hassleblad 500c with this film gives me the most fantastic black and white images I have ever had. The film is idiot proof. Read about it on the net. Much has been said. I only wish it was available in sheet film. This is the only black and white film I will ever need.