C-41 Developing Time Compensation
This chart was created after digesting the information about developing CineStill (C-41 colour process) films at the Freestyle website. It is based on using a Unicolor (or similar) 1 litre capacity kit and 135-36/120 roll films at 102°F. Such kits are nominally rated for a capacity of Qty 8 135-36 or Qty 12 135-24 rolls of C-41 film. However, many claim to be able to process considerably more films than the nominal quantity. That said, chemical exhaustion is a known issue, and this chart attempts to provide a starting point for quantifying how much time compensation is required. Plus two percent per roll seems to be the magic number.
Since I ONLY process C-41 films in batches of three, compensation for each successive tank of three films is highlighted in yellow. Note that I only batch process films when I have sufficient to use an entire C-41 kit within a few days. Eighteen rolls is my absolute limit per 1 litre kit. Use of this information is entirely at your own risk.
See also: www.flickr.com/photos/128127754@N02/45101454571/in/datepo...
www.freestylephoto.biz/static/pdf/msds/cinestill/CineStil...
C-41 Developing Time Compensation
This chart was created after digesting the information about developing CineStill (C-41 colour process) films at the Freestyle website. It is based on using a Unicolor (or similar) 1 litre capacity kit and 135-36/120 roll films at 102°F. Such kits are nominally rated for a capacity of Qty 8 135-36 or Qty 12 135-24 rolls of C-41 film. However, many claim to be able to process considerably more films than the nominal quantity. That said, chemical exhaustion is a known issue, and this chart attempts to provide a starting point for quantifying how much time compensation is required. Plus two percent per roll seems to be the magic number.
Since I ONLY process C-41 films in batches of three, compensation for each successive tank of three films is highlighted in yellow. Note that I only batch process films when I have sufficient to use an entire C-41 kit within a few days. Eighteen rolls is my absolute limit per 1 litre kit. Use of this information is entirely at your own risk.
See also: www.flickr.com/photos/128127754@N02/45101454571/in/datepo...
www.freestylephoto.biz/static/pdf/msds/cinestill/CineStil...