Digital BW, The Print

Steve,

Did you see any metamerism in the nanochrome prints?

Carl

On Jan 12, 2006, at 1:51 PM, Steve Kale wrote:

> I meant to add that I've posted this on the Wide Format forum as  
> well.  Some
> of the comments below pertain to earlier discussions on that forum.
> Nonetheless this stuff may be of interest to some here who are not  
> members
> there.
>
>
>> From: Steve Kale <stevekale@...>
>> Reply-To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
>> Date: Thu, 12 Jan 2006 18:44:09 -0000
>> To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
>> Subject: [Digital BW] Initial Nanochrome Testing
>>
>> Firstly can we please not turn this into another Nanoo Nanoo  
>> session?  Thanks!
>> :-)
>>
>> I thought I'd share some initial testing I have done with these  
>> inks while we
>> wait for
>> longevity information.  The testing I've done thus far is really  
>> only around
>> gamut and ink
>> densities.  Now that I have profiles up and running I'm looking  
>> forward to
>> printing
>> additional, more interesting, images.  All this is very  
>> preliminary as I
>> loaded up my 2100
>> printer yesterday.  Rather than post a big blurb here with too  
>> many numbers, I
>> have typed
>> up my results and included the ICC profiles in a folder which can be
>> downloaded here:
>>
>> http://homepage.mac.com/stevekale/stevekale2/FileSharing37.html
>>
>> (Hopefully Gretag will recognise that it's not my intent to share  
>> the profiles
>> per se but
>> rather to post them so that people can make gamut comparisons.)
>>
>> A couple of brief comments.  The inks are not a pancea for all the  
>> issues
>> inkjet faces
>> today.  They behave very very well on some papers and "normally"  
>> on others, as
>> the results
>> I've posted show (and Shilesh has posted prior to me).  Their  
>> gamut on my 2100
>> performs
>> better than my 4800 with K3 (MIS Eboni rather than Epson MK) in  
>> some areas but
>> not in
>> others.  (I can't show a direct apples to apples comparison  
>> because the
>> Nanochromes do
>> not have an LLK and I am not prepared to load them into my 4800  
>> just yet.  I'd
>> like to see
>> longevity tests before considering that.)  You can make your own  
>> gamut
>> comparisons with
>> Colorsync Utility.  The black ink performs very well on HPR308  
>> with a dMax of
>> 1.96.  The
>> same ink achieves a dMax of 2.32 on EPSG.   (Note, you'll see I  
>> picked up the
>> wrong
>> column for EPSG in the text of the pdf - I'll fix it when I can.)   
>> Even if
>> only this black ink
>> performs well in longevity tests it would be an interesting  
>> consideration for
>> all the x800
>> series printer owners.  We'll have to wait and see.  There are  
>> some problems
>> though in
>> using an ink which very quickly hits its density peak with the  
>> Epson driver
>> with its ink
>> limits and linearization calibrated for completely different  
>> inks.  I'd be
>> interested in
>> feedback on this issue once people have had the chance to look at  
>> the tests
>> I've done.
>>
>> I look forward to any feedback on the tests I've done to date.
>>
>> Cheers
>>
>> Steve