Re: Gum chemistry is simple and easy and Gloy

 
 
In a message dated 20/03/2006 19:37:56 GMT Standard Time,
kthayer@pacifier.com writes:

At any rate, if more pigment makes the gum less insoluble, then why
do most gum teachers, including myself, recommend reducing the
exposure when increasing the pigment to darken the shadows? If you
don't reduce the exposure, you run the risk of blocking not only the
shadows but the midtones as well. If more pigment makes the gum less
insoluble, it's hard to see why you'd need to reduce the exposure
when adding more pigment.

Katherine
 
I said that increasing the amount of pigment gives greater contrast.
 
Reducing the exposure as well will give you good dark shadows just where you
want them.
 
That is if you have got the amount of pigment right.
 
Terry
 
 
 
 
 
 
 
 

Terry King FRPS

RPS Historical Group (Chairman)

_www.hands-on-pictures.com/_ (http://www.hands-on-pictures.com/)

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Received on Mon Mar 20 14:45:56 2006