Lesson learned!

[ChrisN]

I learned a lesson today. When developing two rolls of 120 film in a Paterson tank, and each roll requires 500ml of developer, make sure you have a little bit more than a litre of developer, not a little less than a litre.

Check the right edge of the frame - like this on the whole roll. :bang:

 

[Solinar]

Also, have you noticed how long it takes when you fill the tank with each solution? It seems to take forever when I'm doing it.

 

[Keith]

I think the same thing happened to me with my new Paterson System 4 tank that I just got for doing 120 ... it does one 120 or two 35mm films. The first roll I processed had a similar problem ... with exactly 500ml in the tank as recommended. The next roll I did I put a little extra in and it seems ok. It surprises me that their recomendation would be that marginal! 😕