What difference can I expect to see if I shoot Ilford XP2 Super at 800iso instead of 400iso then standard C41 develop?
After several years of digital darkroom I want to shoot B&W film again but no longer have a wet darkroom, so just ordered some Ilford XP2 Super that I will get C41 processed at a color lab instead - but have never used this film before. Mostly shot Tmax 400.
The Ilford XP2 film spec sheet says: "Although rated at ISO 400/27°, XP2 SUPER can be exposed over the range EI 50/18–800/30. When higher speed is needed, XP2 SUPER can be rated at up to EI 800/30. For finer grain, when speed is less important, rate the film at EI 200/24, although for finest grain it can be rated as low as EI 50/18 if required."
Since this should be done, according to the spec sheet, with no pushing or pulling of the C41 processing, does this mean the latitude of the film is sufficient that it can cope with being over or underexposed one f-stop from its nominal 400iso rating down to 200iso and more importantly for me up to 800iso - ie can I just set my camera to 800iso and shoot same as I would do at 400iso then standard c41 develop without losing shadow detail or seeing a big increase in grain?