QTR-Quadtone RIP

--- In QuadtoneRIP@yahoogroups.com, "boyooso" <leaf@...> wrote:
>
> Is there a good manual for using quadtone rip?
> 
> Specifically the 
> 
> gray highlight
> gray shadow
> gamma 
> 
> functions... 
> 
> This is my firs post, I am trying to figure out the best profile for making negatives for PTPD (platinum palladium) printing.

There is a method of controlling Highlight, Shadow and Gamma using an ACV curve.  Here is an article geared specifically to making digital negatives:

http://www.ronreeder.com/articles/dignegs.pdf