fatihayoglu Posted April 10, 2021 Share #1 Posted April 10, 2021 Advertisement (gone after registration) Hi all, So I’m guessing due to Brexit, Rodinal is not coming to UK and out of stock everywhere. Paranol S is supposedly same as Rodinal, I’m assuming old Rodinal as the developing times are different. So as Paranol is not widely used, the push processing developing times are not widely available so I’m wondering what factor you’d use for push processing, say 1x 2x and 3x. I use mainly HP5, K400, F400 films. Cheers, Fatih Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/319782-paranol-s-new-rodinal-push-processing-times/?do=findComment&comment=4178602'>More sharing options...
Advertisement Posted April 10, 2021 Posted April 10, 2021 Hi fatihayoglu, Take a look here Paranol S: New Rodinal, push processing times. I'm sure you'll find what you were looking for!
250swb Posted April 10, 2021 Share #2 Posted April 10, 2021 There are some other direct equivalents available in the UK https://www.thedarkroom.co.uk/collections/film-developer/products/fomadon-r09-film-developer-250ml 1 Link to post Share on other sites More sharing options...
fatihayoglu Posted April 10, 2021 Author Share #3 Posted April 10, 2021 Hi Steve, Thanks for your reply, however I happen to have already some Paranol S now (unfortunately bought them thinking I could use my Rodinal times, little I did know it is not exactly the same) Link to post Share on other sites More sharing options...
spydrxx Posted April 11, 2021 Share #4 Posted April 11, 2021 Why not just shoot a sacrificial roll? Link to post Share on other sites More sharing options...
fatihayoglu Posted April 11, 2021 Author Share #5 Posted April 11, 2021 3 hours ago, spydrxx said: Why not just shoot a sacrificial roll? Yes, can do that. How can I find 1 push and 2 push timings with a single roll? Any practical way to do it? Link to post Share on other sites More sharing options...
spydrxx Posted April 13, 2021 Share #6 Posted April 13, 2021 On 4/11/2021 at 1:55 PM, fatihayoglu said: Yes, can do that. How can I find 1 push and 2 push timings with a single roll? Any practical way to do it? I'm not sure. Perhaps shooting a static gray card and using a densitometer to compare results and mathematically relating those to the Rodinal data. Personally, if it was me, I'd arbitrarily guess at a factor and do any adjustments in post processing, given B&W films have a lot of latitude, or at worst plan on stand processing the roll - several proponents claim it works, but in all honesty I've never tried it.. Link to post Share on other sites More sharing options...
fatihayoglu Posted April 13, 2021 Author Share #7 Posted April 13, 2021 Advertisement (gone after registration) Another recommendation I got, which sounds very logical actually, is to calculate of % difference between Rodinal and Paranol base developing times and then apply that % to increased Rodinal processing times which I’ve used to use for push processing. Yes 1+100 works ok with Rodinal, I might give a try to Paranol as well. Link to post Share on other sites More sharing options...
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