Question regarding agitation rhythm

[user237428934]

Hi,

On my table is a lot of stuff for devolping bw film that came today with the post. The last time I did this was in school but that's long ago. So today will be my first film development that I am fully aware of 🙂

Did some research and watched some youtube films about how to do it. Most if the time they use the once-a-minute agitation. But now in the description of the developer I bought (tetenal ultrafin plus) is only a 3sec. agitation valid for Acros film. Does that mean I turn the tank once every 3 seconds for the full development time?

Thank you.

 

[lawrence]

No, once every 3 seconds is far too much -- normally you agitate for 3 to 5 seconds every 30 seconds or else for 10 seconds every minute. You probably need to do a bit of experimentation to find the best time for you for this film/developer combination, depending on the contrast you want.

 

[coelacanth]

Maybe the info you read was saying one agitation (physically moving the tank) should take about 3 seconds to complete?

As lawrence said, 5 seconds every 30 seconds or 10 seconds every minute is the "standard" that you can start with. Depending on the film, developers and your souping, you might want to try something different like stand or semi-stand as experiment, but again, 5 sec per 30 sec or 10 sec per 1 min is a good start point.

 

[jan normandale]

go to digitaltruth.com and use their "massive development chart"

 

[jan normandale]

here you go....

http://www.digitaltruth.com/devchart.php?Film=Neopan+100+Acros&Developer=Ultrafin&mdc=Search

 

[user237428934]

here you go....

http://www.digitaltruth.com/devchart.php?Film=Neopan+100+Acros&Developer=Ultrafin&mdc=Search

Thank you. Was new to me.

 

[user237428934]

I found another source where they said that ultrafin developer needs continuous agitation together with acros. So I just did that. Calculated temperature in and just began to scan some negatives. The negatives look a bit foggy to me, but they scan ok, so I think they have to look that way.

 

[user237428934]

Some of the results. Devloped, scanned. Then adjusted contrast and blacks. It was easier than expected 🙂

 

[tbm]

I process 100 and 400 speed black and white films in Microdol-X and always agitate 4-5 times every 60 seconds, and I always get phenomenal results!

 

[Ezzie]

I use TMAX developer 1+4 for TMX (100) and TMY (400) 120 film. And agitate twice every 30 seconds (which can be done in 6 seconds - you need to hear the fluid flow from top to bottom), after an initial 30secs of agitation, and it seems to work fine.

 

[jan normandale]

@ Tom wbn : if your neg looks foggy I'd check your fixer it could be exhausted or else you might want to fix the neg longer next time. I use Kodak Fixer and minimum of 8 minutes if not 9 or 10 minutes.

FWIW, the scans look just fine.