Accidentally rated Tri-X at Asa 50..

[orenrcohen]

Accidentally shot a roll of Tri-X 400 120 film @ 50 Asa (thought I had Adox CHS 50 loaded). I develop in rodinal.. Definitely some nice shots on the roll.. Will I be able to salvage? Massive Dev chart does not list any times.. Any thoughts?


Oren

 

[bizarrius]

Massive dev chart says 7:30 minutes with rodinal 1+50 for a 100asa pull on the 35mm trix400.
maybe try something like that? :S

 

[sevo]

You won't be able to get as low as 50 - I'd mistrust any figures that claim that. Pulling to 100-200 seems more plausible, and the results will be soft enough that you can deal with the extra stop or two of overexposure in printing or scanning.

Rodinal might be less suitable than other developers for the purpose - if you must use it, don't dilute it too much, you don't want to decrease contrast any further. Go with 1+50 or even 1+25 if you can find reliable figures for the latter.

 

[MartinP]

I'd suggest the precaution of exposing some more Tri-X (doesn't need to be a whole roll, you can snip off a length in a changing-bag etc.) at ISO50 under similar lighting with a similar metering technique - then using that to confirm the 'reasonable guess' of whatever development you expect to use in rescuing the original roll. It will remove a little bit of doubt, probably make your results better and all at the cost of only an hour of work 🙂

 

[Pirate]

Rollei Low Speed developer bottle has times for developing Tri-X at 200 ISO, but that's as low as it goes.