Re: Fresson question

[Sandy King <sanking@clemson.edu>]

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