massive dev chart app

Simon photo

Simon photo

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Hi folks its me again picking brains.
Now, when i took the plunge into the wondrous world of home developing i procured the massive dev chart app for my android. Now being a newbie have followed the timing for each step religiously but having read some stuff im beginning to doubt some of the times and agitation frequencies.
I have run two recipes on it now and other than developing time the agitation steps stay the same also, is a ten minute rinse really necessary at the end? I understand that any residual chems can spell disaster but TEN MINUTES!
I understand you can customize the steps in the app but im kind of relying on it as it is at the moment cos im happy with the results for now.
The agitation is ten seconds for every minute on every recipe.
 
It's recommended that you rinse thoroughly, i don't do the full 10 mins recommended but i do rinse for about 5 or until the film base looks to be as clear as its going to be.
 
I use the MDC app on my iPhone, admittedly always with Rodinal but with a variety of films and it's always been bang on, and yes I do rinse for 10 minutes, I don't see what harm it can do and I do like to keep things consistent.
 
^^ I also use the Ilford method. No need to do anymore - developing already uses a lot of water without needing to waste anymore.
 
So how it reads to me is fill the tank then invert ten times, dump then re fill invert twenty times, dump then fill again, invert forty times job done?

How's about the agitation times for developing? I mean, the app has worked spot on so far but can i gain or lose from over or under agitation? I understand about surge marks from vigorous agitation so i take my time but i just wonder if better results could be gained from a different schedule?
 
I replied on my phone - looking at that link, it is not especially useful, lots of discussion on washing but no definitive answer. The definitive answer to the Ilford method is here:

http://www.ilfordphoto.com/aboutus/download.asp?n=386

at the bottom right of page 10.

Alternatively, fill the spiral tank with water at the same temperature, +/– 5ºC (9ºF), as the processing solutions and invert it five times. Drain the water away and refill. Invert the tank ten times. Once more drain the water away and refill. Finally, invert the tank twenty times and drain the water away.
Click to expand...

The modifying of agitation is something that is also up for debate, but it depends, a lot of people change their agitation times as they are unhappy with their developing results. Are you unhappy with your developing results?
 
I use the ilford method too, but usually do 2-3 20 inversion rinses. It all depends on how long it takes the water to become colourless- acros has a rather stubborn purple tinge that I think is the anti-halation coating.
 
freecom2 said:
I replied on my phone - looking at that link, it is not especially useful, lots of discussion on washing but no definitive answer. The definitive answer to the Ilford method is here:

http://www.ilfordphoto.com/aboutus/download.asp?n=386

at the bottom right of page 10.

The modifying of agitation is something that is also up for debate, but it depends, a lot of people change their agitation times as they are unhappy with their developing results. Are you unhappy with your developing results?
Click to expand...

Im not unhappy with the results, i just raised an eyebrow at the fact the app prompts you to use the same agitation scheme for every film/developer combination.
 
Best thing to do is to check what agitation scheme the technical documents recommend. For instance for my preferred choice of film, Kodak T-Max 400, Kodak recommends 5 agitations every 30 seconds and I do that regardless of developer. They have tested it and know best, as far as I am concerned.
 
Simon photo said:
Im not unhappy with the results, i just raised an eyebrow at the fact the app prompts you to use the same agitation scheme for every film/developer combination.
Click to expand...

Seems to be what most people do anyway, wouldn't worry too much.
 
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