Any room temperature between 68-82°F (20-28°C) will produce good results. Development is increased more than fixing by temperature. Fixing and completion is accelerated by agitation, while decreasing development. So as temperature increases you can compensate with increased agitation. Processing over 82°F (28°C) will result in pushed negatives with higher contrast and more pronounced grain. Processing below 68°F (20°C) renders pulled negatives with lower contrast.
Native ISO development:
Constant agitation at 80°F (27°C) for at least 3min,
Intermittent agitation at 75°F (24°C) for at least 4min,
Minimal agitation at 70°F (21°C) for at least 6min.
Temp tolerance is +/-2°F (1°C) and times are minimum. Feel free to extend processing time to ensure full fixing of film or removal of color dyes. Adding time does not increase development.
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