This APS film has three formats H, C and P (High Definition, Classic and Panoramic) and was supposed to take over from 35mm film, but it failed! It’s also one of the only film sizes I use that is no longer in production…. It was available in both colour and black and white negative film and also colour slide reversal film. It also came in lengths of 25 and 40 exposure cartidges. It is a shame it is no longer available as there are some fantastic cameras about and they are very cheap to buy!