Developing Time Based On Temperature Changes
Ideally, your film developer and other chemicals should all be used at 68°F. In reality, temperatures can vary widely unless you have an expensive fluid control system installed in your darkroom.
|
64°
|
66°
|
68°
|
70°
|
72°
|
75°
|
77°
|
80°
|
|---|---|---|---|---|---|---|---|
|
5:00
|
4:30
|
4:00
|
3:30
|
3:15
|
2:30
|
N/R
|
N/R
|
|
5:30
|
5:00
|
4:30
|
4
|
3:45
|
3:00
|
N/R
|
N/R
|
|
6:00
|
5:30
|
5:00
|
4:30
|
4:00
|
3:15
|
N/R
|
N/R
|
|
6:30
|
6:00
|
5:30
|
5:00
|
4:30
|
3:30
|
N/R
|
N/R
|
|
7:15
|
6:30
|
6:00
|
5:30
|
5:00
|
4:00
|
3:45
|
N/R
|
|
8:00
|
7:15
|
6:30
|
6:00
|
5:15
|
4:30
|
4:00
|
3:30
|
|
8:45
|
7:45
|
7:00
|
6:30
|
5:45
|
5:00
|
4:30
|
3:45
|
|
9:15
|
8:15
|
7:30
|
6:45
|
6:00
|
5:15
|
4:45
|
4:00
|
|
9:45
|
8:45
|
8:00
|
7:15
|
6:30
|
5:30
|
5:00
|
4:15
|
|
10:30
|
9:30
|
8:30
|
7:45
|
6:30
|
6:00
|
5:30
|
4:45
|
|
11:15
|
10:00
|
9:00
|
8:00
|
7:15
|
6:15
|
5:45
|
5:00
|
|
11:45
|
10:30
|
9:30
|
8:30
|
7:45
|
6:30
|
6:00
|
5:15
|
|
12:30
|
11:15
|
10:00
|
9:00
|
8:00
|
7:00
|
6:15
|
5:30
|