From: Halvor (halvorb@mac.com)
Date: 05/23/03-09:38:03 PM Z
Sorry
think I have sorted it out now, was just the proof of the tests showing up
in a different way than expected. cant see the forrst because of the trees
sort of situation.
hovewer, How similar can I excpect two similarily made test strips to look ?
on 23-05-03 12:14, Halvor at halvorb@mac.com wrote:
> Hi group
>
> what would be a "normal" level of fluctuation in the curves when testing
> palladium ?
>
> I have done some tests but find it hard to pin down the results. The curves
> tends to vary up to 0.1 to 0.2 Lg H in the midtones, (toe area & sensitivity
> point tend to be reasonably similar, D max stable but position varies),
> basically the contrast is unstable. Is this just a result of uneven coating
> or other factors, my measuring, or simply is palladium printing this
> "unstable" ?
>
>
> Halvor Bjørngård
>
>
> FeIII from B&S
> cranes platinum paper
> "basic/traditional formula"
> problem seems indipendent of light source, sun, mercury halide, HID, studio
> daylight bulb.
> coating with rod, dryed with hair dryer, exsposed dry,,,,,
> coating area similar
>
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