Current love affair in monochrome is Delta 3200 for 35mm or medium format - developed in DDX (1+4) as a one shot process. Film rated anywhere from ISO 200 up to ISO 256000. I have found it to be a very versatile film. Slower emulsion choice is Pan F or FP4 in IDII as a one shot process. Looking forward to trying EFKE films for 4x5