Developing black-and-white film at home is an easier task than working with color materials. The reason is actually a simple one—most chemicals used for black-and-white processing work best right around room temperature, between 68 and 72-degrees Fahrenheit.
But working with color negative (C41) film is trickier. When working with color-negative materials, temperature is critical. The environment must be set at a decidedly not room temperature 100-degrees in order to net a 3.5-minute development time. Being off by a couple degrees is a major concern, since at 102 degrees the development time is about 15 seconds shorter.
Getting precise temperature control at home has been a challenge for a long time. Some innovative home developers recommend using sous vide cooking equipment to maintain precise temperature control of the water bath commonly used to heat chemicals before use.
CineStill, which makes a number of motion picture-style film stocks for 35mm and medium format cameras, has released its own sous vide device. Well, sort of. The TCS-1000 Temperature Control System shares a lot of the same technology, but it's tuned for film developing. So you won't have to worry about using the same device to process a roll of Portra and cook your pot roast.
The TCS-1000 features arms to keep your bottles of development chemicals in place in the water bath, and offers both customized and pre-set temperatures for different types of film. It can be set to display temperature in Celsius or Fahrenheit, and has both ground protection (to prevent electric shock) and an overheat protection sensor.
We live in a world where digital photography is the norm, but film has still has it devotees. The simple fact is, there simply aren't enough of them to ensure local film processing is available in all areas. The TCS-1000 will make developing color negative film a more practical at-home activity, and can also be used for E6 (color slide) and black-and-white development. It's priced at $99.95 and will start shipping around October 10th.