On Aug 2, 2007, at 3:50 PM, john dean wrote:
> That's what I just said. Limit your black channel or your going to
> loose dmax. It is over inking, just like everyone has been talking
> about here. It is definately going to happen with the ABM Epson driver
> or QTR if you aren't careful and aware of it.
>
> What I like about the paper is that is very smooth and sharp, much
> more so than Photorag for small prints. Premier Art Hotpress is also
> but for some reason it produces a strange reddish or bluish cast
> depending on the inkset used. I hate Premier Art for monochrome. I
> like the color of the Crane PR with sepia inks but I certainly
> wouldn't use it as my primary paper for neutral toned work.
>
> Richard, how is the world are you getting a 1.72 dmax on Photorag with
> that inkset of yours? You must have put some dye in that black
> channel. I've never seen a pure pigment go that high on matte papers
> under the best conditions. The best I can get is 1.69 on a very good
> day. Are you seeing bronzing with your inks on the fiber gloss papers,
> or can one avoid the nasty sprays?
>
> john
>
>
>
>>
>> I was very surprised to find that the 100% patch on the step wedge
>> was
>> no longer solid black. It looks as if the paper has been overloaded
>> and it's density measures significantly less than the 95% patch. When
>> I checked the calibration strip the highest reading I now get is
>> 1.57,
>> versus 1.63 before. Also, the points I used to build my curve (i.e.
>> ink limit) has shifted.
>>
>> I went back to some old prints and indeed, they still measure as
>> expected (i.e. my spectro is fine). I tried a new black cartridge and
>> also aligned the printer heads (2200). There was a slight
>> improvement,
>> but relatively little.
>>
>> Something is out of whack.
>>
>> Terry.
>>
>> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Richard
>> Wolfson"
>> <rw@> wrote:
>>>
>>> I like Crane's Museo Portfolio Rag very much for my black & white
>> printing. Here are some of my Dmax measurements with a few
>> comparisons. Note that I'm using the new GQ2 ink set I designed for
>> Media Street.
>>>
>>> Paper Dmax K limit
>>> Museo Portfolio Rag 1.64 50%
>>> Hahnemuhle Photo Rag 1.72 100%
>>> Museo Silver Rag
>>> K = Photo Black Neutral 2.09 63%
>>> K = Matte Black 1.77 100%
>>>
>>> I agree with John Dean: you have to limit the inks on Crane's
>> papers, and it is a beautiful paper. Since it has no optical
>> brightener, it is a little warmer (but just a little) than Hahnemuhle
>> Photo Rag.
>>>
>>> Since the GQ2 ink set includes both warm and cold grays in its seven
>> inks, it's easy to adjust how warm the b&w prints should be. I build
>> Cold, Warm, and Neutral profiles, and Roy Harrington's latest
>> QuadToneRIP offers "Split Tone Curve Blending." That makes it easy to
>> blend those three profiles for beautiful platinum prints (warm in the
>> light to mid tones, neutral to cool in the darker tones) on papers
>> like Crane's.
>>>
>>> Richard
>>>
>>> Richard Wolfson
>>> black & white digital printmaker
>>> www.RichardWolfson.com
>>>
>>>
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