Roger Hicks
Veteran
Ah, yes, thanks - that sounds like it makes sense.
Another question that has sprung to mind (and many thanks for all the help so far), is what is the shelf life of the Tetenal chemicals? The 5L kits are much better value, but it would take me a while to shoot 60 rolls - though the break-even point is probably around 30 films (and if I'm on a colour-shooting trip to Thailand I could quite easily come back with that many). Also, I guess the lower cost of the 5L kit would make it more attractive to do one-shot processing.
The limiting factor (as you would expect) is the first dev. Here is the life, from the instruction book:
Opened concentrates, 24 weeks; mixed dev, unused, 8 weeks; 50% used dev, 2 weeks.
Obviously 600 ml one-shot allows 8 runs from 5l = 40 rolls in a CPE-2.
Cheers,
R.