MrBrowning
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Thanks that's good to know. I haven't had anything like that happen with my 35mm or the Mat-124 until now.
A dust particle, or grain of sand, or whatever might have been inadvertently introduced onto the roller when loading that roll of film and then possibly blown out or knocked out upon removing the film or loading the next one. Happens from time to time. Sometimes a 35mm roll has something in its felt light traps that causes a scratch only on that roll as another example...
BT's 2 bath does have Pro, which is toxic and might pose to danger to a septi tank.
Does have Pro?
I don't understand. Do you mean Pyro? The formula I have for it is a follows:
Bath A
Metol 6.25g
Sodium Sulphite 85g
Water to 1 litre
Bath B
Sodium Metaborate 12g
Taken from his website.
Water to 1 litre
There is a new formula which increases metol to 6.5g and reduce sulphite to 80g.
There are no good combinations the film is the critical choice.
Unfortunately the results obtained from two bath developers is usually not commensurate with the ease of use.
Are you saying that the results from two bath developers is less than ideal?
You may still use developers like Rodinal at very high dilutions or any other single bath compensating developers to control contrast, if in case you shoot with toy cameras like Holga.
Yes, whether you use something like Diafine or mix your own from published formulas they are a compromise designed to give good results with most every film. Good perhaps not optimal. With a standard developer you just have more control over the results. There really is no flexibility with two bath developers. You do sacrifice some quality for convenience. Remember such developers cause a compression of the tonal scale. You may desire this or maybe not. The only time that I use a two bath developer is when dealing with film from simple cameras that have no exposure control.
I think what Jerry is trying to say or is saying and trying to get across to you is that two bath development is not a cure-all. You will still have to play with a film to get the most out of it whether you use a two-bath or one shot developer. I will say that you would more than likely get easier printable results with a two-bath developer(you could be a little sloppier in your process) than a one-shot or whatever developer. Will it be better than say, Xtol, D76 or pyro's? The answer is NO! Just a little easier. JW
Let's not forget that the Barry Thornton-type two bath developer is not a split developer like Diafine (where practically no development takes place in Bath A). The Thornton type has the advantage that you can adjust the degree to which the second bath plays, from very little
Understood. I admit I do have a tendency to be a little sloppy at times. I try not to be but sometimes it just happens.
I should have used a different word for "sloppier" and never meant using it toward you.
Yes, whether you use something like Diafine or mix your own from published formulas they are a compromise designed to give good results with most every film. Good perhaps not optimal. With a standard developer you just have more control over the results. There really is no flexibility with two bath developers. You do sacrifice some quality for convenience. Remember such developers cause a compression of the tonal scale. You may desire this or maybe not. The only time that I use a two bath developer is when dealing with film from simple cameras that have no exposure control.
An EI of 200 for TX is within the normal latitude of the film so just develop it as you normally would. This would be true for all developers.
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