|
Marek,
You should be able to find
a lot of information through internet. I remember seeing lots of articles on
this when scanner was becoming popular.
I had/have both
densitometer and scanner, so at one time (many many years ago) I tried it out,
and the measurement using scanner is quite reasonable.
Dave
Is there a way to measure the DMAX of a print with a scanner
/Photoshop? I do not have a densitometer at hand. I vaguely remember a thread
a while back, but could not find it.
Marek
> Date: Sun, 13
Jan 2008 10:06:14 -0500
> From: sanking@clemson.edu
> Subject: Re:
Fresson question
> To: alt-photo-process-l@usask.ca
>
>
Reflective D-Max is just a term that describes the darkness of a
>
print as measured with a densitometer, so it is expressed as a log
>
value. Pt./Pd., kallitype and vandyke prints on art papers generally
>
have a maximum Dmax of about log 1.45 - 1.55. Silver prints on glossy
>
papers can have a Dmax of up to log 2.2 or even higher. A direct
>
carbon print like a Fresson print will have a maximum Dmax of below
>
log 1.4. Carbon transfer prints can have a reflective Dmax as high as
>
silver papers, though this depends on many working conditions.
>
> Reflective D-Max is a technical description and does not make any
> implication about aesthetic quality, though many pursue it for its
> own sake as they do detail and sharpness.
>
>
>
Sandy
>
>
>
>
>
>
> At 12:25
AM -0500 1/12/08, Judy Seigel wrote:
> >
> >
>
>Now, however, a possibly dumb question... though I doubt anyone's
>
>reading this far, so what the hey: What is "reflective D-Max"?
>
>D-max on an opaque surface rather than in a transparency? Or?
>
>(I've never seen that term -- tho, just ask me & I'll explain
ULF.)
> >
> >
> >
> >Judy
>
Make distant family not so distant with Windows Vista® + Windows Live™. Start now!
|