QTR-Quadtone RIP

--- In QuadtoneRIP@yahoogroups.com, Howard Shaw <glassman@...> wrote:
>
> You could use every second step on your 0-100 
> step wedge (ie 51 values) but most people just use 21 steps in intervals 
> of 5. Make sure there are no reversals in the steps.
> 

Actually, even 51 steps may be too many. QTR is not only sensitive to reversals. It also complains if the steps are too small (it just thinks they are reversed). This happened to me regularly when I tried to use 51 steps. So I reverted to 21 steps as most here do as Howard pointed out. That's sufficient to have a good linearization.

Joost