[alt-photo] Re: gum curve question

henk thijs henk.thijs at hetnet.nl
Thu Aug 19 12:41:50 GMT 2010

Hi Cor,
Yes, i am aware of the problems, i used the film 'ages ago' with Dektol ten times diluted, and i could use the results.
But at that time i used interpositives made on Ilford multigrade - grade 0 or 1 when i remember well- , but now the interpositive is made by inkjet printing, and my question was : what about the difference in light-blocking . Is there some curve, or is it ok to make a fairly less contrasty digital  positive.
Just wondering about if the 'UV-light-inkjet-blocking' is also true for 'normal light'.
But ok, if i am wasting my time , i will contact you ..... but in what way do you use the stuff?

ps i will check the article; still a valuable source of information.

On 19 aug 2010, at 10:38, <C.Breukel at lumc.nl> <C.Breukel at lumc.nl> wrote:

> Henk,
> I think it will be hard to get a continuous scale/tone out of APHS film,
> as you know this is a lith film, essentially black or clear, to get
> continuous tone out of it you'll need something like LC-1 developer, and
> even than you'll get a somewhat weird curve (I believe they are in a
> small article I wrote once for Judy's JPFP journal), so I think it will
> be hard to "transfer" the digital curve to the film curve..
> Best,
> Cor,
> Ps if you want to throw the film away I would gladly take it..;-)..
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