Digital BW, The Print

Yes, the idea was simply to see what a reading device which can take  
measurements at a distance would say about the difference, given  
similar lighting, etc. My assumption is that, like the eye, it would  
find a matte print with a lower D-max equivalent to a gloss print with  
a higher D-max, once both were glazed.

C. D. Tobie
WW Product Technology Mngr.
Digital Imaging & Home Theater
DataColor.com
CDTobie@...

On Dec 29, 2008, at 1:19 PM, "pr_roark" <pr_roark@...> wrote:

> CDTobie wrote:
>
> ...
>> Yes, there is a gloss/matte differential when glazed.
>> I keep intending to use a spectroradiometer to take
>> measurements of gloss and matte prints under glass
>> and determine what the differential value, or formula,
>> is, but I never seem to have the time. But the short
>> story is that the difference virtually disappears when
>> framed under glass.
>
> I'm not sure how a "spectroradiometer" works.  Is is like a very
> accurate spot meter that can read at a distance?
>
> I think the problem might be that the amount of reflections is too
> dependent on the particular environment, for example, how much light  
> is
> behind the viewer.
>
> Very roughly, I've used as my "minimum acceptable" dmax figures 1.6  
> for
> matte and 2.0 for glossy.
>
>
> Paul
> www.PaulRoark.com
>
>
>
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