QTR-Quadtone RIP

This is a great idea!

-Kerik

On Jan 31, 2013, at 7:25 AM, David MacAlpine <macalpine@...> wrote:

> Greetings,
> 
> Thank you for providing QTR-print - it is a fantastic tool and well worth
> the purchase price. I would like to suggest a feature for use in making
> digital negatives - a mask function.
> 
> Typically when using QTR for digital negatives we adjust ink density levels
> to identify the minimum levels to  'just' achieve paper white. If we try
> to lay down excess ink to really ensure paper white and complete blocking,
> it makes linearizing the high tones very difficult (the curve is just too
> steep in the initial steps).
> 
> It would be nice to have a mask function in QTR-print that would enable one
> to specify a border mask of some size (1 inch etc) to surround the image.
> This border mask would then lay down excess ink (K or Y) to ensure complete
> blocking of the brush strokes and a nice clean borderless print.
> 
> The problem is that although we can find the minimum ink levels for paper
> white in making our original curves, the levels of pt/pd and sensitizer are
> often quite variable in the border region (ie whispy brush strokes)
> outside the image. These regions of thin pt/pd and sensitizer are more
> sensitive to UV and tend to darken faster then the main image. Hence the
> request for the masking function.
> 
> Cheers,
> 
> Dave
> 
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> 
> 


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