Digital BW, The Print

Thanks Greg.
 The tag lines on my post were meant to have a smiley but I goofed.
I do appreciate your response. I also still would like any input
possible from those like yourself using different instruments that can
 tell me if they can see any variances of measurements taken with
changes in the ambiant working area light.

Regards
Duane



--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Greg"
<dfaprinting@...> wrote:
>
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "dlruckus" 
> <dlruckus@> wrote:
> >
> > Hi.
> > 
> >  Y'all are talking about the things I asked about the other day  and
> > got no response on. Oh well, I'll take info any way it comes.
> > 
> 
> 
> Slightly more info for you to file away...
> 
> The i1UV and DTP20UV have slightly different UV fliters, the cutoff 
> is at a slightly different place and can be see if you graph the 
> spectral measurements of paper white using a paper that has OBA (like 
> EEM). Which one is more correct would be difficult to determine. The 
> colors are also slightly effected, and certain printers show more 
> change in the color than other printers. I just measured some targets 
> for an HP 8450, and it shows more change between the two devices than 
> the ink that I use, so I would conclude that their inks may contain 
> some brighteners. And here is a picture for you:
> http://img.photobucket.com/albums/v329/Greg_E/i1DTP20test.gif
>