Stand development in dillute Rodinal leads to uneven results.
Not necessarily.
All I do is stand development in Rodinal (Fomadon R09):
Chinese New Year 2015 by Ricardo Miranda, on Flickr
Not necessarily.
All I do is stand development in Rodinal (Fomadon R09):
Chinese New Year 2015 by Ricardo Miranda, on Flickr
No arguing that's a nice result but just curious, why stand development?
Film is tri-x shot in a barnack leica, in a Patterson tank with the solution mixed to a full liter (10ml + 1L), so there should be plenty of chemical and developer. Was given a full hour development time. I usually do a couple inversions but I haven't in the past but this result is a bit more dramatic.
Also, anyone notice tri-x anti halation dye seems darker than it used to be?
Never seen a minimum quantity of developer in instructions for Azol or Agfa Rodinal, so I treat that as web gossip.
Well the instruction sheet for a genuine package of Agfa Rodinal manufactured before their demise lists only two dilutions 1+25 and 1+50. Nothing given for higher dilutions. I personally take this to mean that Agfa did not consider higher dilutions to be useable. So essentially 5.0 ml per roll or equivalent. The 1+50 dilution is even noted as "not recommended" for Ilford HP5+.
Ok but my point was different and you have not found a minimum quantity call out.
Don't know were I found the 1:100 stand but I did not do it from experiment.
It was before the web.
Edit and my tank takes 190 mls so that would be 4 mls anyway.
And when I said Azol I meant 1965 timescale.
I'm lazy and poor.
Each ofWhat do you hope to achieve by stand development?
Well the instruction sheet for a genuine package of Agfa Rodinal manufactured before their demise lists only two dilutions 1+25 and 1+50. Nothing given for higher dilutions. I personally take this to mean that Agfa did not consider higher dilutions to be useable. So essentially 5.0 ml per roll or equivalent. The 1+50 dilution is even noted as "not recommended" for Ilford HP5+.
Placing a lower limit to the amount of Rodinal per roll is a bit of placing the cart before the horse. Agfa found that the 1+50 dilution was not suitable for HP5+. If one were to go to higher dilutions then more and more films would fail. So the concept that development time / concentration is constant is only valid for a very limited range of dilutions. Agfa must have thought that film speed, contrast, or some other factor must have suffered.
If we are talking of before the web then we are also not talking about modern emulsions. This is why I take a jaundiced view of older formulas and methods. Without further research the is no guarantee that they work with today's films. As I pointed out in a previous post developer exhaustion is only visible under certain conditions. So the problem may be present but just not apparent.
I particularly dislike the justification that some people use for extreme dilutions, cost and convenience. As has been said many times before film is expensive and developers cheap. Being stingy with developer is a false economy. If one is too lazy to occasionally invert a tank then digital photography was made for you.
I use the instruction sheet for a genuine Agfa Rodinal, printed before they went belly up, and it gives a time of 15 minutes for HP5+, at 1/50, I have developed the said film for the Agfa suggested time and it works well, gives very nice negatives, I sometimes find that 17 minutes if the subject was lower in contrast, I haven't used HP5 for at least 8 years, I prefer Fomapan, but I recently bought some HP5 35mm and 120 from my local boots, and developed them in RO9 one shotm 1 in 50 for 15 minutes, and the results are lovely, so sharp that you could cut yourself, and the grain is pretty good, so from my point of view whoever says that Rodinal does not suit HP5 at 1/50 has got it wrong, as far as Stand development, it works for Fomapan 400 for some subjects, if the subject is very high contrast then stand development is a tool to tame the contrast, and should be used as such, but it does not work for 80% of things, but it should be regarded as another tool in a B/W photographers armoury, not as a be all and end all, or some sort of magic bullet, it is of use, but only for some subjects, for instance, I used stand to develop a ro;; of Fomapan last night, I new if I developed in D76 or Rodinal as normal the contrast would be difficult to print as the light was harsh, but with the stand development the negatives will be of lower contrast, with lovely graduation and tones and will print very easily
Richard
Lower contrast shadow detail
Highlight compression
Bigger grain
I particularly dislike the justification that some people use for extreme dilutions, cost and convenience. As has been said many times before film is expensive and developers cheap. Being stingy with developer is a false economy. If one is too lazy to occasionally invert a tank then digital photography was made for you.
Each of
Lower contrast shadow detail
Highlight compression
Bigger grain
Varies with film type of course,...
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