On May 2, 2006, at 2:59 PM, TERRYAKING@aol.com wrote:
>
> In a message dated 2/5/06 8:52:03 pm, Ender100@aol.com writes:
>
>
>> What I am not sure I understand is if you are saying that for a
>> given mix of gum printed with one coat, changing the shape of the
>> curve will NOT allow you to get whatever tones you want between
>> the DMax of this given mix (one printing) and paper white? And
>> further that you can only obtain some of the tones ? Which ones?
>
> I share Martk's doubts.
>
> Surely the point is that as gum has a clearly defined range, any
> fiddling around with mixes or curves can only affect what occurs
> within that range. Thus apparent increases in perceived density in
> the print are at the expense of loss of gradation.
Exactly, which is what I was saying about the difference between
Chris's two prints; she increased the perceived DMax and lost some of
the tones. I'm not sure where the idea came from that I might be
suggesting that fiddling around with mixes or curves could extend the
range of the emulsion; I'd think it would be obvious that I'm
arguing exactly the opposite.
Katharine
Received on 05/02/06-04:27:22 PM Z
This archive was generated by hypermail 2.2.0 : 06/23/06-10:10:52 AM Z CST