AcuFine development times

[ewillhelm]

Hello all! So does anyone out there happen to possess any developing time info for AcuFine? Back in the day, I used to shoot gobs of Tri-X at 1600, and then develop with AcuFine. Somewhere along the way, I stopped developing film, but not without having a good 15 rolls that were never developed. I've been keeping these rolls with me, waiting for the day when I decided I'd try to develop them again. Thanks to quarantine, that day is here! So I bought some AcuFine, and am basically all set to go. Trouble is, all the developing info I can find stops at ASA1000. I'm 99% certain there used to be times offered for 1600, even if it wasn't recommended. If anyone out there has any info addressing this, I would be most appreciative.

Thanks and take care,
Eric

 

[ewillhelm]

D'oh! Go figure, as soon as I post this, I think I found my answer. https://www.digitaltruth.com/devcha...=%Acufine%&mdc=Search&TempUnits=F&TimeUnits=D

 

[Ronald M]

Try a test of 6 exposures.

Exposure chemistry changes with time so you are already in trouble

 

[Corran]

Years ago, my mentor found a very special batch of HP5+ that had been shot by his mentor of his wedding. He had no idea what EI was used but he remembered that there was a bunch of missing photos, including some of the most important / memorable events that were probably in that bunch of lost rolls.

Upon discussing options, I recommended Acufine processed for double the recommended time. The negatives turned out amazingly and he was ecstatic.

That's a good starting point as you've already found. Process one roll at a time just to be sure things are working properly is my recommendation still, and if they are super important negatives, use the Acufine one-shot (or at least put the used developer in a different bottle until you are through all of your rolls). Acufine doesn't have to be one-shot but this helps ensure consistency between process batches.