alexz
Well-known
I'm going to try my luck with Neopan 1600/1250 in Microphen, this is my first time I'll be trying other developer then NC110 to which I used to so far.
I have a pack of Microphen containing two parts A and B and there are instructions on th einner side of the box along with dev. times for different films and temp.derating chart.
Also, there is a table claiming 1 litre of stock solution is enough to develop 10 135-36 rolls which seems a bit confusing to me.
A single roll in a regular Jobo 1520 tank requires at least 240ml of the developer, twice as much is needed for 2 rolls developed in single session.
So, how it can be possible to develop 10 36-exp rolls in 1:0 (stock) solution which is 1 litre (as made from a single Microphen box) ? I tend to consider no more then 4 rolls can be made of it...
What do I miss ?
Additional quiz: the recommended dev. time for Neopan 1600 is 3.5 minutes in 20 deg. (by both Microphen box and Massive Dev. Chart). Soundsa leerily to me (I used to considerably longer times with HC110 sol. H for Tri-X). So I'll be trying to derate according to temp. derating charts on the box.
According to that chart, in order to reach 5 minutes of development I need to decrease the temp. to approx. 16 deg. C. This is my first time I'm trying to step off the standard 20 deg. approach, so would appreciate if you can check my calc.out...
Thanks
I have a pack of Microphen containing two parts A and B and there are instructions on th einner side of the box along with dev. times for different films and temp.derating chart.
Also, there is a table claiming 1 litre of stock solution is enough to develop 10 135-36 rolls which seems a bit confusing to me.
A single roll in a regular Jobo 1520 tank requires at least 240ml of the developer, twice as much is needed for 2 rolls developed in single session.
So, how it can be possible to develop 10 36-exp rolls in 1:0 (stock) solution which is 1 litre (as made from a single Microphen box) ? I tend to consider no more then 4 rolls can be made of it...
What do I miss ?
Additional quiz: the recommended dev. time for Neopan 1600 is 3.5 minutes in 20 deg. (by both Microphen box and Massive Dev. Chart). Soundsa leerily to me (I used to considerably longer times with HC110 sol. H for Tri-X). So I'll be trying to derate according to temp. derating charts on the box.
According to that chart, in order to reach 5 minutes of development I need to decrease the temp. to approx. 16 deg. C. This is my first time I'm trying to step off the standard 20 deg. approach, so would appreciate if you can check my calc.out...
Thanks