Response to Temperature vs. time

A raise in the temperature of your developer acts as a catalyst in the chemical reaction that happens, making your developer act FASTER. That means that your chemical will be attacking the exposed silver halide crystals more actively, as if it was a stronger developer. Usually this would mean that the silver halide crystals will react by gathering toghether in larger "grains"... I don't think that this applies to all developpers, but with some it must be like that. Try it out and compare the grain structure of two films you will develop in different temperatures (but taken care to have exactly the same Dmax) and share your observations with us.

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