Please Note : We are open for in-store shopping in our Hollywood retail location, following California’s latest Covid-19 guidelines. We are adhering to CDC requirements for cleaning and sanitizing, social distancing, and we require all customers wear a mask. Our Santa Fe Springs Will-Call counter is also open for walk-in sales. Orders shipping from our Distribution Center are shipping as normal, M-F. We will continue to offer Curbside Pick-up and Contactless Film Processing for those who prefer it - see these details for order pickups as well as contactless film processing. We appreciate your support!

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