I started photography in the digital domain, have recently moved to colour transparency, and am now looking at B&W film. My question is, how do I find out info on the DR of different B&W films. I've just trawled the Ilford fact sheets and it doesn't mention DR. I've just got used to dealing with 5 stops of DR on a sensor, and 4 and a bit of DR on Velvia 50 (using NDG's and all that) - and I;ve heard that some B&W films can handle scenes with DR of 10-11 stops (does this mean I won't need to use all my NDG filters?) - but where do I find out specific DR for specific films? Any help would be greatly appreciated.