Nelsonfoto Forums
May 19, 2013, 03:08:12 PM *
Welcome, Guest. Please login or register.

Login with username, password and session length
News: Learn All You Can. Share All You Learn.
 
   Home   Help Login Register  
Pages: [1]
  Print  
Author Topic: Volunteer needed to soup a roll of Plenachrome  (Read 500 times)
iggers
Prolific Poster
*****
Posts: 581


View Profile WWW Email
« on: August 24, 2006, 05:29:27 PM »

Last week I found that my Vrede Box had a partly-exposed roll of 120 film in it. I took the camera to the cottage and shot frames 5 through 8. Now that I've finished the roll, I've been able to remove it from the camera. Turns out it is a roll of "Plenachrome", probably from the 1940s. I'm reluctant to take it to Blacks (the big Canadian photo chain), as I expect that, if there are salvageable frames, they will treat the film like any other incoming 120 b&w and may lose whetaver is on it.

Is there anyone out there who would be willing, if I send the film, to try to develop the negs, and if anything turns out either scan them or mail them back to me? And if you like post the results here, of course.
Logged
Kin Lau
What darkslide?
Prolific Poster
*****
Posts: 1137


View Profile Email
« Reply #1 on: August 24, 2006, 06:44:54 PM »

I can soup it for you in Diafine or Rodinal or HC110, but I suspect that Diafine is probably the best bet.
Logged

I started with nothing... I still have most of    it.
iggers
Prolific Poster
*****
Posts: 581


View Profile WWW Email
« Reply #2 on: August 25, 2006, 02:44:11 AM »

Thanks! (Please send me a PM with your mailing address!)
 
I did find a post online that says one should not use Diafine with old found film:

http://photo.net/bboard/q-and-a-fetch-msg?msg_id=00B7Hu&tag=

Donald Qualls   Prolific Poster, feb 11, 2005; 06:36 p.m.
I'd recommend using HC-110 or similar low-fog developer. Plenachrome was a black and white film, ASA 50 or so before the change (it would be ISO 100 if it were still made now). As John suggested, it most likely would go 17 minutes in D-76 stock solution; a comparable time would be about 11 minutes in HC-110 Dilution B. And by today's standards, that's a LOT of development; modern Tri-X 400 takes less than seven minutes in Dilution B, even if you don't believe the huge change in Kodak's literature after the emulsion coating change. However, that's a time that has been reported to work well for old film here previously.

Whatever you do, *don't* develop old found film in Diafine -- Diafine will increase the fog, rather than restrain it, and leave you with film on which you can barely make out an image, if at all. Been there, done that...
Logged
Kin Lau
What darkslide?
Prolific Poster
*****
Posts: 1137


View Profile Email
« Reply #3 on: August 25, 2006, 06:18:39 AM »

HC110B it is then.

PM sent.
Logged

I started with nothing... I still have most of    it.
Don Mckeith
Frequent Contributor
***
Posts: 154


View Profile Email
« Reply #4 on: August 25, 2006, 07:28:42 PM »

I  shot some '46 Plenachrome---it's ortho, so you can develop by inspection under red  safe light.

I will attest to Donald Qualls' advice--- D-76 stock--17 min.
Logged
Pages: [1]
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.18 | SMF © 2013, Simple Machines Valid XHTML 1.0! Valid CSS!