Slide film developed in paRodinal !!!

[Joao]

Hello
I developed an outdated slide film in paRodinal and it works!! Some grain, as expected, but overall decent results (not expected)
http://www.flickr.com/photos/joaofreitas/sets/72157616007098413/
I noticed some white marks related to film sprocket holes (too much agitation), and some burned areas in some frames (adverse storage conditions of the film, expired date, etc could have contributed to this…).
I welcome reports of similar experiences - and coments & sugestions
Joao

 

[Keith]

I developed some Fuji slide film in Xtol a while ago and got very similar results ... kind of flat and rather grainy. It's not something I'd do by choice ... I bought a camera off the net that came with a half exposed roll of Velvia in it and I was curious to see what was on it.

I'm glad I didn't pay for E6 processing ... some of the dullest photographs I've ever seen! 😛

 

[le vrai rdu]

stupid question maybe, but , is the result a negative or a positive ?

how did you estimated the good time ?

 

[Joao]

stupid question maybe, but , is the result a negative or a positive ?

how did you estimated the good time ?

Hi
The result is a ugly greenish negative film (see attached picture). It was scanned as a "negative monochromatic" film.
The developing time was a guesstimate based on the following rationale (it may be completely wrong):
1- Outdated 100 ISO slide film could benefit from exposure as a 50 ISO film (opinion from more experienced people)
2- Current B&W 50 ISO film in paRodinal 1+100 does well with a 20' time(according to my experience with Polypan F).
3- Increasing the lenght of time at this dilution could do less harm than good (pure guess)

I was certainly lucky🙂 - and I believe that I should have been less enthusiastic with the inversions, to prevent marks near the sprocket holes.

Let me add that this was done mostly by curiosity - I had an old roll and did not want to spend money in a commercial development. If I want good B&W negatives, I know what films to use😉.
Regards
Joao

 

[kbg32]

stupid question maybe, but , is the result a negative or a positive ?

how did you estimated the good time ?

FYI - Simply speaking, most slide film is double reversal development. Chemistry contains a first developer for negative, second developer is for positive. Hence, if you develop slide film with only a developer for negative film, that is what you get - a negative. I used to develop color slide film, Ektachrome, in color negative chemistry. Wild, wild color! Very saturated.

 

[le vrai rdu]

okay 🙂
I hoped you could get a positive 🙁 too bad 😀

 

[pschauss]

Joao,

All of the pictures have great compostion. The film handled the range of lighting in "Two lamps" very well.

 

[Joao]

Joao,

All of the pictures have great compostion. The film handled the range of lighting in "Two lamps" very well.

Thanks. Some contrast enhancing was done, but the overal results with this film really surprised me.
Regards
Joao

 

[neelin]

If I want good B&W negatives, I know what films to use😉.

Bah! You know nothing! Everyone knows you're supposed to use a Cosmic 35, not a Zenit when shooting out of date slide film & developing in paRodinal 😉

Seriously, thanks Joao for furthering our knowledge. I have been shooting anything I can get my hands on (for free) & trying it in paRodinal. However I may just switch to turpentine on some home-built emulsion that I got a formula for using bitumen(asphalt tar)/chloroform/benzene coated on a substrate.

I have to say compared my crude experiments, you do take the prize for the ugliest negative that yielded results 😉

robert

 

[Svitantti]

Any BW developer will develop any silver-based film to a negative, because the light-sensitive particles are much the same in any case (silver-bromide?).

Color films are however processed with different kind of process as is for example Agfa Scala if you want slides.

Theres not much point using these "special" films for BW work, but it will work if you want to try it.

Color negatives are developed with colour developer so that the dyes are formed to the color layers, then the silver negative is bleached.

With color positives, actually the first step is quite norma BW negative developer. That will take out the negative image, after which the rest of the image is "exposed" chemically and then developed with color developer. Then all the developed silver is bleached and you get a positive color image. BW slides work so that the negative is bleached before exposing again, then the unexposed silver is left for the positive image.

So it shouldn't be a big wonder that a BW dev will make a BW negative out of any film, Kodachrome, E6, C41, or Agfa scala etc...