The 250 ml per 80 square inch figure is not from Kodak information; it's an Anchell & Troop recommendation. I applied the word "carefree" to indicate that, if one uses this admittedly conservative developer-to-film ratio, exhaustion will not occur regardless of how fully or minimally exposed any or all sheets are. One time fits all, without need for 'extra' sheets of film to work around exhaustion.
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