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.
Fortunately, we have found an easy Fahrenheit chart that works great.
| 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 |
