Digital BW, The Print

Yeah.  The weird stuff is the paper white.  I just re-measured Epson Premium
Luster (it's been hanging for around 9-10 hours) and it is 94.7 -0.6 -4.2
without glop and constant at 94.2 -0.7 -3.5 with glop. Yet it looks dirtier
where there is glop. Photorag doesn't look as bright to my eye yet reads
97.2 0.5 -0.4.  The RC papers have a noticeable baby blue tint when compared
with HPR.  But I will take the extra dMax anyday!


> From: Louis Dina <lbdina@...>
> Reply-To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Date: Sat, 19 Feb 2005 00:23:08 -0000
> To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Subject: Re: [Digital BW] Overcoating with glop (was My experiences with GLOP
> and UT7)
> 
> 
> 
> Wow,
> 
> Those are some great Dmax numbers, translating to a density of about
> 2.55.  That's right up there with a great wet darkroom print.  Thanks
> for the feedback.
> 
> Lou
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Steve Kale
> <stevekale@b...> wrote:
>> FYI here are some results of applying a straight 50% glop to
> various papers.
>> I took the measurements while doing some colour profiling using an
> Eye One
>> and the i1 TC 9.1B RGB Testchart.  I started by recording
> measurements of
>> patch 17A only to later realise it was not the darkest patch!  I
>> subsequently also measured patch 1A.  I also measured the impact on
> paper
>> white which was noticeable much more so than with coatings of 15%
> and 20%.
>> (Lab readings) There are a few gaps but it still might be helpful.
>> 
>> Epson Premium Luster:
>> 
>> Paper white pre glop    96.1  -0.4  -4.1
>> Paper white post glop   94.2  -0.7  -3.7
>> Patch 17A pre glop       6.6
>> Patch 17A post glop      4.2  -3.5   1.1
>> Patch 1A pre glop
>> Patch 1A post glop       2.5   0.2  -0.2
>> 
>> Ilford Smooth Pearl
>> 
>> Paper white pre glop    96.6   0.2  -5.8
>> Paper white post glop   94.8  -0.3  -5.4
>> Patch 17A pre glop
>> Patch 17A post glop     4.1   -3.4   1.0
>> Patch 1A pre glop
>> Patch 1A post glop      2.5   0.2   -0.3
>> 
>> EPSG
>> 
>> Paper white pre glop    95.1  -0.6  -3.9
>> Paper white post glop   94.8  -0.8  -3.4
>> Patch 17A pre glop       6.2  -3.6   0.1
>> Patch 17A post glop      4.2  -3.3   1.0
>> Patch 1A pre glop        4.3   0.2  -1.4
>> Patch 1A post glop       2.6   0.3  -0.3
>