klix Posted February 2, 2006 Share Posted February 2, 2006 Just looking to have a little bit of experimenting fun, but I'd like to at least have a reasonable reference starying point. Has anyone experimented with this combo, with films other than what's on the link below? I'm specifically interested in HP5+. http://unblinkingeye.com/Articles/Rodinal/rodinal.html Any comments? Thanks. KL Link to comment Share on other sites More sharing options...
jim_appleyard Posted February 2, 2006 Share Posted February 2, 2006 You can try here as well: http://www.apug.org/forums/article.php?a=183 Link to comment Share on other sites More sharing options...
profhlynnjones Posted February 2, 2006 Share Posted February 2, 2006 Not a good idea,KL, Xtol is an acid based developer (the only one), is low in reduction potential, low in contrast, slow working. Rodinal is an alkaline based developer, highly active, high reduction potential, good contrast, fast working, hard grain. Lynn Link to comment Share on other sites More sharing options...
kng Posted February 2, 2006 Share Posted February 2, 2006 I think there are a few threads here on photo.net about this. I've tried XTOL 1:1 with a squirt of about 5mL of rodinal a while ago, when I used to shoot film. I dev'd tri-x with it, and results were essentially characteristic of XTOL 1:1 with a bit more contrast and acutance. Looked a bit like HC110 in terms of tonality, but with the better grain of XTOL. Link to comment Share on other sites More sharing options...
aeiffel Posted February 2, 2006 Share Posted February 2, 2006 I've also tried the "rodinol" mix with Xtol 1:1. I really just couldn't tell the difference between the blend and the standard 1:1. Maybe I should have tried to increase the rodinal quantity ?<br>IMHO one should try to mix rodinal with stock Xtol in order to see a difference, but I haven't had an opportunity to experiment with this yet. Link to comment Share on other sites More sharing options...
lex_jenkins Posted February 2, 2006 Share Posted February 2, 2006 I was suspicious of claims that Rodinal and Xtol could be mixed so I tried it. Turns out it can be done and it can work very well. I've used "RodinX" successfully on Tri-X exposed at 400. I didn't try it on other films. It took some experimenting to find the right balance between the two developers because they work very differently. But the negs had the acutance of Rodinal with the fine grain of Xtol. I don't have my data handy because I'm not at my own PC right now. But if you search the archives using my name and "RodinX" you should be able to find the data I used three or four years ago. There's Link to comment Share on other sites More sharing options...
robert_grasing Posted February 3, 2006 Share Posted February 3, 2006 Lynn, XTOL pH = 8.2. (For comparison, D76 = 8.6, Microdol-X = 7.6, Rodinal, over 9.0). Why do you say it's an acidic developer? Link to comment Share on other sites More sharing options...
tariq_gibran Posted February 3, 2006 Share Posted February 3, 2006 I just did this experiment last night with both Hp5 and Neopan 400 and the negs look good although I have yet to scan or print them. I altered things a bit such that for 300ML of water, I add 150ML of straight XTOL and 5ML of Rodinal. I would suggest trying about 9 minutes with an intial agitation of 30 seconds and then 5 seconds(3 inversion-rotations) every 2 minutes or so. That should be a good starting point. That's for 120 in a Nikor tank. Link to comment Share on other sites More sharing options...
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