Regarding development times

[Kawaiithulhu]

Weren’t you putting together a WWII era darkroom? Haaa a Jobo must look conspicuously out of place...

It totally does, I'm getting practical in my old age and want to try some color and I've got a pile of Portra and a few rolls Velvia 120 to mess around with and don't want to spend all my time tempering everything manually. Along the way I've learned to enjoy Rodinal, rubylith, and a quiet extraction fan, though =)

 

[removed account4]

This question has been bothering me:

I develop in a small Paterson tank. From the moment I pour the chemicals, it takes a few seconds before they have all gone inside the tank. For 135 the difference is very little, but for 120 it can take about 10 seconds. Where do you start your timing, the moment you pour the chemical, or the moment it has all gotten inside the tank?
I'm guessing it shouldn't make an appreciable difference, but I'm still wondering what other people do.

Also, my searches didn't turn up anything, so apologies if the question has already been addressed.

hi rho sigma

when i am done pouring in i start the clock.
i gave up on the published times and charts a long time ago
and have my own times i use that seem to work out OK
the published times are a starting point so
start the clock whenever you want

I'm definitely not a cork sniffing connoisseur of technique,

i like that and might have to quote you at some point

 

[KenS]

This question has been bothering me:

I develop in a small Paterson tank. From the moment I pour the chemicals, it takes a few seconds before they have all gone inside the tank. For 135 the difference is very little, but for 120 it can take about 10 seconds. Where do you start your timing, the moment you pour the chemical, or the moment it has all gotten inside the tank?
I'm guessing it shouldn't make an appreciable difference, but I'm still wondering what other people do.

Also, my searches didn't turn up anything, so apologies if the question has already been addressed.

Might I suggest that you fill the tank to the required volume o developer BEFORE you put the loaded film reel into the tank. The "bottom" to "top" differential will be but a second( (or so).
Ken

 

[MattKing]

One of the advantages of having a repeatable routine is that it becomes a habit, and with habits and the semi-automatic actions included in them, one is much more likely to notice a change or error than if one is constantly changing the approach.
It is like riding a bicycle - if you have to think about keeping your balance, you are much more likely to fall.

 

[David Allen]

+1

 

[David Allen]

One of the advantages of having a repeatable routine is that it becomes a habit, and with habits and the semi-automatic actions included in them, one is much more likely to notice a change or error than if one is constantly changing the approach.
It is like riding a bicycle - if you have to think about keeping your balance, you are much more likely to fall.

+1