RIchardn
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RIchardn said:I have been developing Acros in Acutol and have been pleased with the results. Now I can't get hold of any acutol what would be a good replacement developer for Acros?
I am a bit of a beginner and like to keep things simple!
MMfoto said:Hey! What happended to Acutol? I didn't know there was a problem, and now I see B&H has stopped listing it and also FX-39. What gives?
MMfoto said:Lachlan: Do you get your Crawley news from the BJP??
aligndont said:Digital truth does not show a time value for acros at ie 100 at 1:50 diluted Rodinal. They show 1:50 at ie 80 for 11.5 minutes. I suppose I could extrapolate developind time to be 12 or so at i.e. 100 and see how your tecnique works.
Can I stop holding my breath now?
Interesting data Patrick and worth remembering PC-TEA.Three years ago I did a comparison of Acutol with PC-TEA as a result of an argument with Michael Scarpitti. I have no financial interest in which one wins. The $150 I got for the PT article is probably all I'll ever get. For anybody who is interested, I am attaching comparisons of characteristic curves and some extreme enlargements of negatives of the same subject on the same roll of film on the same day. The tree is a Mimosa. You will see that resolution is about the same, as was grain.
My point is more that there are several ways to skin a cat or develop film than anything else. I could also point out that the shelf life of PC-TEA concentrate is much longer than that of Acutol, but I won't. The moral of the story is don't cry if Acutol never makes it back. Learn something else.
The old dilution for Acutol was 1+10, although it could also be diluted 1+15 or 1+20 if greater control of development was required such as photographs taken in high contrast lighting conditions. The developer was later revamped and the standard dilution became 1+9 with 1+14 and 1+19 being suggested for a more compensating working solution.I thought I had posted a reply, but I guess I forgot to push the button.
Both gave practically the same CI under the conditions I used, which was about 0.55. There was little, if any, difference between them in grain, gradation and acutance. I would expect the same to be true if both were adjusted to give the CI required by grade 3. The comparison you see is between small portions of 15X photographic enlargements scanned on a flatbed at 600 dpi.
I don't remember why I used 1+7. I'm not absolutely sure I did. I may have labeled the file wrongly. Unfortunately, I have no more Acutol. Does 10 minutes at 70 F seem about right for normal CI at 1+7?
I have been developing Acros in Acutol and have been pleased with the results. Now I can't get hold of any acutol what would be a good replacement developer for Acros?
I am a bit of a beginner and like to keep things simple!
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