photochrom
lomojournalism
Hello! I found an old black& white ORWO NP22 135-36 (ISO unknown) and I would like to develop it using Agfa Rodinal Special (aka Studional) 1:15. Do you have any suggestions for the developing time? 
Tom A
RFF Sponsor
I dont know about the Studional - but for odd films, particulary slow ones and yours is 22 Din (125 asa) - though I would recommend a slight downrating to 15-18 Din (80 or 64 asa). I would do it in "standard" Rodinal 1:100 and stand develop for 60 minutes. Just did a run like that with some KB 21 (Adox/Efke rated 125 asa in 1983)) - 26 years old. Rating it at 64 asa instead of the 125 gave me good details in the shadows and reasonable highlights.
V
varjag
Guest
What Tom says. I shot a long-expired roll of NP22 rated as 80. Some base fog visible, but turned out OK-ish. Wouldn't use it for anything remotely serious though.
MartinP
Veteran
Just to clarify, was this roll exposed decades ago, or will you be shooting it now ?
I used a few rolls when I was 20 (more than a 1/4 century ago) and looked at the negs just now. It loses shadow detail quite abruptly and gives a contrasty, "old" look to the contact sheets. Possibly I exposed it wrongly and underdeveloped ? It looks very different in character to the FP4 from the same time. Interesting though.
Edit: It seems I developed the two rolls on 12 Nov 1983 and used ten minutes in Paterson Aculux. EI was supposedly 125asa with the TTL meter on a Contax 139 (which still works).
I used a few rolls when I was 20 (more than a 1/4 century ago) and looked at the negs just now. It loses shadow detail quite abruptly and gives a contrasty, "old" look to the contact sheets. Possibly I exposed it wrongly and underdeveloped ? It looks very different in character to the FP4 from the same time. Interesting though.
Edit: It seems I developed the two rolls on 12 Nov 1983 and used ten minutes in Paterson Aculux. EI was supposedly 125asa with the TTL meter on a Contax 139 (which still works).
Last edited:
payasam
a.k.a. Mukul Dube
I've used plenty of it, and of its stable-make NP27, in the long years when in India we got no goodies from the West; and most of us would rate it at 20 DIN and process in standard MQ developers. I never did get a satisfactory print from it larger than 10" x 8".
johannielscom
Snorting silver salts
Rodinal 1:100 can handle most anything and is very safe to use. Even got acceptable results (well, for scanning at least) from expired NPZ800 rated 640 with that.
photochrom
lomojournalism
Thank you all for all the useful answers! Right now I only have Agfa Rodinal Special (aka Studional) 1:15. :bang: I was thinking to develop it for 3.30 minutes (for Rollei Retro 100 the standard is aprox. 4 minutes) but I needed a second opinion.
It was exposed decades ago.
Right now I only have Agfa Rodinal Special (aka Studional) 1:15. :bang: I was thinking to develop it for 3.30 minutes (for Rollei Retro 100 the standard is aprox. 4 minutes) but I needed a second opinion.It was exposed decades ago.