Response to Novice Q ; one-shot or reuse?

People reused their developers a lot more in the days when most films were large format and development was done by inspection. When roll film came into wide use, some continued to reuse developers, but worked out a formula by which to increase development each time, or by which to replenish the developer (such as D-23 and its D-25R replenisher). With the advent of the zone system, people tended to prefer precision and repeatability. Rodinal, HC-110 and PMK are all good bets for one-shot development--they keep well and are cheap.

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