Quote Originally Posted by Felinik View Post
I add about 4 frames on a 36 roll, in order to keep down the waste of frames you mention I only roll 36 rolls, less would be too many frames in total wasted.
That's how I reason too. Per roll the level of waste is the same, so the economic incentive to load our own film from bulk becomes smaller the shorter the rolls are. Pretty simple economics.
I suppose another incentive to 'roll our own' could be to make rolls that are of a length that is appropriate to how we work, disregarding the economics of it. I've always wanted to have 20 and 30 exposure rolls. It's easier to keep track of in my head, and I often cut rolls short at that many exposures, because the lighting conditions have drastically changed, or I move on to another project.