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Re: [Digital BW] New IJC/OPM Profiles

2003-06-11 by Carl Schofield

Robert,

Thanks for checking.  Charles at Bowhaus thinks that there shouldn't be 
any problem with profile compatibility between software versions, but 
he has referred the problem to the programmers.  I downloaded the 
profiles again and it seems that when I first open the cool profile in 
IJC 1.0 the black ink endpoint is off and there are some "stray" points 
floating on the graph associated with the light black ink.  I just 
reset the 100% endpoints for both curves and that solved the problem.

Carl

On Tuesday, June 10, 2003, at 11:30  PM, Robert Morrison wrote:

> Carl I'm using IJC 1.01 and OPM 1.02b.  I just downloaded the profile 
> from
> the web and printed a step wedge through OPM with the profile and it 
> was
> fine.  Likewise, I printed from within IJC and this was also 
> perfect...so
> there must be a bug.  I'd contact bowhaus for an update.
>
> Sorry,
>
> Robert
>
>
> On 6/10/03 7:04 PM, "Carl Schofield" <scho@...> wrote:
>
>> Robert,
>>
>> Thanks for uploading your new OPM/IJC profiles.  I just printed some
>> step-wedges for linearization with your warm and cool profiles for the
>> 2200.  The warm profile step-wedge was fine, but in the cool profile
>> step-wedge no black ink was printed in patch #26 (100%) - just the
>> photo cyan/magenta mix.  I noticed that your black curve in the cool
>> profile does not quite reach 100% (goes straight up) - was this
>> intentional?  Also, there is a single, isolated band (about 1 mm) of
>> dark grey in the gradient above the #26 patch for the light black ink
>> tweaks printout.  I was printing from OPM 1.02 and IJC 1.0.  Just
>> wondering if the profile is corrupted or if there is a bug in OPM 1.02
>> that might be causing this.  Despite these minor problems, the 60/40
>> blend of the warm/cool profiles does indeed produce a very nice
>> selenium tone on ISP.
>>
>> Carl
>>
>> On Tuesday, June 10, 2003, at 06:36  PM, Robert Morrison wrote:
>>
>>> For those using Ink Jet Control and/or Open Printmaker, Antonis just
>>> uploaded to the file section of the group several new profiles that
>>> I've
>>> made.
>>>
>>>
>>> They are located at:
>>>
>>> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/
>>> IJC%20and%2
>>> 0OPM%20software/IJC%20profiles/
>>>
>>>
>>> The 7000 profiles were made with my 7000 which is currently loaded
>>> with the
>>> Piezotone Neutral Warm inks and Museum Black.  These profiles are 
>>> for a
>>> standard loading (Black, two "cyan" grays, two "magenta" grays, and 
>>> one
>>> "yellow" gray).  There are two profiles, one for Eclipse Satine
>>> Softwhite
>>> and one for Photo Rag.  Neither profile is lineaized so you can apply
>>> your
>>> own linearization to your individual printer if you have Ink Jet
>>> Control.
>>>
>>> The 2200 profiles were made from Antonis's ISP_10 profile and are for
>>> the
>>> OEM Ultrachrome inks with Photo Black on Ilford Galerie Smooth Pearl.
>>> 2200_OEM.PK_ISP_warm_rgm is just Antonis's profile tweaked for my
>>> printer.
>>>
>>> 2200_OEM.PK_ISP_cool_rgm has considerably more magenta and cyan in 
>>> it.
>>>  The
>>> profile itself is probably too cool for anyone but our dearly 
>>> departed
>>> friend Jerry...but it blends great with the warm profile in OPM.  I
>>> particularly like a 60/40 warm/cool blend which gives a nice Selenium
>>> toned
>>> look to my eye.  I tested these profiles with OPM 1.02b and they are
>>> also
>>> not linearized.
>>>
>>> I'm currently profiling several uncoated Gampi Japanese papers that I
>>> like
>>> quite a lot with the Piezotones and am going to do a profile for the
>>> Ultratone inkset in my 1280.  Blacks are not as good with the RC
>>> papers in
>>> the 1280 as they are in the 2200 (less total ink flow), but the
>>> hilights of
>>> this ink set are smoother than the 2200, because of the light gray
>>> ink.  I
>>> think the Ultratone grays, with the Ultrachrome Photo and Matte 
>>> blacks
>>> and
>>> yellow, photo magenta and photo cyan inks in a 2200 (or 7600) will be
>>> the
>>> ultimate BW machine...when driven with Open Printmaker.  You could
>>> theoretically dial up any tone...and even split tone with incredible
>>> flexibility.
>>>
>>> Once you have a basic profile with ink partitioning that you are 
>>> happy
>>> with
>>> for a given ink set...making a new profile with Ink Jet Control for a
>>> different printer of the same model or new paper usually takes less
>>> than
>>> 15-20 minutes.
>>>
>>>
>>> Have fun!
>>>
>>> Robert
>>>

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