I think that one can certainly benefit by using some of the Zone System principles with roll film. If I were doing this without going to the trouble of testing for proper EI, I would cut the advertised speed by one half. I would then decrease the advertised development time by 20%. This will benefit the smaller negatives by reducing grain. I would shoot a film like Efke 25 or 50 and target my development times (if further adjustment is necessary) so that the negative would print at a grade three paper. I would use paper grade changes as expansion or contraction if needed rather then adjusting development at the negative stage.
Originally Posted by arigram
Once you have a little experience you will find that one can become fairly adept at visually reading the contrast within a scene. Remember that Edward Weston never used a light meter.