I have been asked to process an out of date 35mm C41 film. The actual age is anything between 15 and 20 years old, possibly more. It has only just been found in an old camera after the owner died, and that was 5 years ago! Developing the film does not present any problems with regard to the actual process.
The present owner is fully aware that nothing may be recovereble but I would like to give it my best shot. Are there any hints about processing times, do it as monochrome using ID11 or what. My normal C41 time is 3mins 15 secs.
Thanks in anticipation