I have four sheets of provia loaded and I am planing to shoot them off tomorrow. I will use a digital slr to meter but I also will take the sekonic l508. Having only shot Foma so far(and only a few sheets), could you give me some advice on how to shoot Provia? Ps. During loading, i have noticed that the provia feels a lot thicker than the Foma. I have checked the specifications and it seems Foma is 0.175mm while Provia is .204mm thick. Why is this so? Is this common for all transparencies? Could it be that the foma is missing a protective layer which the Provia has?