MattKing
Moderator
My workflow uses developer that is always at the ambient room temperature, so when I develop film, I measure its temperature, and then look at a dial (essentially a chart) and develop for the necessary time shown.
All the other steps happen at room temperature, using chemicals that are either already at room temperature, or allowed to come to room temperature before starting. The biggest requirement is enough water for the end wash.
The variations you will encounter at anything approaching room temperature won't matter much for the 10 minutes or less that the film is in the room temperature developer. When the developer and the surrounding environment are so close in temperature, the temperature drift for the developer will be inconsequential.
It is different if you have need to develop at a temperature that is a long way away from room temperature. That is why colour film processing is more demanding. But for black and white, and normal indoor temperatures, just work at the room temperature measured at the beginning.
With Rodinal, you need to mix up the working solution each time. You can either fiddle with adjusting the temperature before you start, or mix it up a half hour earlier, using water somewhere close to room temperature, and then let it come to room temperature.
Or, let your mixing water come to room temperature ahead of time. A covered bottle sitting on the counter for an hour will probably do.
All the other steps happen at room temperature, using chemicals that are either already at room temperature, or allowed to come to room temperature before starting. The biggest requirement is enough water for the end wash.
The variations you will encounter at anything approaching room temperature won't matter much for the 10 minutes or less that the film is in the room temperature developer. When the developer and the surrounding environment are so close in temperature, the temperature drift for the developer will be inconsequential.
It is different if you have need to develop at a temperature that is a long way away from room temperature. That is why colour film processing is more demanding. But for black and white, and normal indoor temperatures, just work at the room temperature measured at the beginning.
With Rodinal, you need to mix up the working solution each time. You can either fiddle with adjusting the temperature before you start, or mix it up a half hour earlier, using water somewhere close to room temperature, and then let it come to room temperature.
Or, let your mixing water come to room temperature ahead of time. A covered bottle sitting on the counter for an hour will probably do.