XTOL + Automatic processing

[jejes]

Hello, i want to standarize processing for XTOL with Noritsu V30. Until now i was doing manually every roll searching his time. Is there a way to process for example all 100iso at one time? I will suppose that it's not fair becasue the silver content of each film determines time. I mean, APX is one time, and Foma100 is another.

How do you batch develop this?

Thank You

 

[loccdor]

Most likely for films within 30sec - 1 minute of each other, grouping them together, erring on the side of over-development.

I've done similar in my own personal photography: when I have a bunch of different films, seeing which have similar development times that I can group in my 3 reel Paterson tank.

It's not that much related to film speed, you need to compare the times.

Depending on what volume of film you process, this individuation can add significantly to your cost by requiring more batches than you would otherwise need, which is why sometimes B&W development has a higher charge than C-41, even though the chemicals are generally cheaper.

 

[koraks]

Most likely for films within 30sec - 1 minute of each other, grouping them together, erring on the side of over-development.

This. Ignore the film speed; look for films that have similar development times and process them together. Everything that's within 3 minutes of each other can go in the same batch. Is it ideal/perfect? No. But it'll likely be good enough and as long as you deliver negatives that are free of streaks, dust & scratches, I bet that nobody would even notice.

 

[jejes]

Yes, i will do like that. Averaging times within a range of 2-2:30 min and correcting in computer

 

[mshchem]

When in doubt 8 minutes at 20°C, in stock XTOL continuous agitation. (Jobo)

I often look up the exact time after I start processing, my default timer setting is 8 minutes, I adjust it as required. Most of the time 8 minutes works fine.