again, when choosing the ASA, you want to ask your DP what kind of look you are going for. If you are shooting with T film, depending on what kind of lights your using, the only filters I would recommend is an 80A or an 85B. It gets more confusing if you start using HMI's with T film. If you go with HMI's, dont forget to use CTO's or use i believe its 85B (i get them two confused).