QTR-Quadtone RIP

so how bright a light are you looking at this under?
The eye is not very good at deep dark shadow separation.
I find you need a pretty bright light source to see deep shadow on lustre.
On the other hand when you shine a bright light on it, it's amazing how
much detail you can make out.
Ever wondered why those galleries shine spot lights on their paintings /
prints :)

Mike

On 9 October 2012 18:28, KentB <philip@...> wrote:

> **
>
>
> I have a question regarding the visible differences I am seeing with
> profiles for Matte and Lustre papers.
>
> In my eternal effort to get better prints, I was seduced by the look of
> Canson Platine Fibre....with some sort of notion that higher dmax would
> give more depth to the prints. Logic would suggest that lustre will have a
> better range...but I am leaning back towards matte paper due to an
> apparently more lively separation of tones all the way into the deepest
> shadow just short of pure black.
>
> What I am finding is that even after linearization, the shadows are not as
> well separated when compared with the same test image on matte paper. This
> is contrary to what I expected. There is a measurable dmax difference of
> approx 2.30 on the lustre and 1.65 on the matte. After linearization, I
> would have expected the deep shadow to show a better separation...but what
> I have is a good profile with separation...but the shadows are compressed
> when compared to the matte paper. Why is this? If the profile is
> linearized, I expected the separation to be that much more apparent in
> lustre paper due to the measurably darker black that is possible.
>
> Where this leads me is that ultimately the Matte print has more presence,
> and apparent range of tone....despite the fact that the dmax is lower.
>
> I have adjusted gray_shadow, gray_hightlight and gray_gamma to lighten the
> shadow and hopefully get more open shadows on the lustre...and have
> relinearized...with little or no improvement.
>
> Why is it apparently more difficult to get open shadows on the lustre
> paper...even after linearization????
>
> Thanks for any enlightenment on this...
>
>  
>


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