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Digital BW, The Print

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Message

Re: [Digital BW] QTR neutral curve PKN, UT7 Light warm/cool grey

2005-02-21 by Carl Schofield

Steve,

The GRAY_VAL I used for ink 2 (LK-glop) in the neutral profile was 
measured using the LC gray (I didn't have the combo cal file then). I 
just re-measured using the combo (LC+LM+LK 45/45/10) and also got 
around 20 for a partition value, comparing the 100% combo L to the 
values in the C (PKN) strip.  If you are getting partition values up in 
the 40's I wonder if you are using the dark UT7 gray inks instead of 
the light grays.

Carl

On Feb 21, 2005, at 4:03 PM, Steve Kale wrote:

>
> I swear I must just have different ink or something.  My Gray Value for
> 45/45 was 40 when I think yours is down at 20.  I am really beginning 
> to
> wonder if MIS have any QC or perhaps we are just doing something 
> completely
> differently.  I print the calib page with the ink limits set and then
> measure the 100 patch on the combo and find the interpolated "% black".
>
>
>> From: Carl Schofield <scho@...>
>> Reply-To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
>> Date: Mon, 21 Feb 2005 15:47:53 -0500
>> To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
>> Subject: Re: [Digital BW]  QTR neutral curve PKN, UT7 Light warm/cool 
>> grey
>>
>>
>> Steve,
>>
>> I printed your calib page with the profile I posted (on both Ilford
>> Smooth Pearl and  Kirkland Glossy) and here are the comparable data to
>> what you just posted:
>>
>> Kirkland Glossy:
>> LM/LC at 45/45 LK 10 (glop)
>> 50% patch L 61.0, a 0.7, b -2.0
>> 100% patch L 43.3, a 1.3, b -1.9
>>
>> Ilford Smooth Pearl:
>> LM/LC at 45/45 LK 10 (glop)
>> 50% patch L 61.9, a 0.9, b -1.9
>> 100% patch L 44.3, a 1.4, b -2.0
>>
>>
>> Quite different from your results - are you using the UT7 LM and LC
>> gray ink?  Note that I did not edit the LK curve in the cal .quad file
>> so glop (LK) was applied in the combo print (LK/LM/LC).
>>
>> Carl
>>
>> On Feb 21, 2005, at 1:32 PM, Steve Kale wrote:
>>
>>>
>>> Ilford Smooth Pearl.  I haven't linearized yet.  I was simply looking
>>> at the
>>> calib page which shows the LC/LM/LK/Y inks combined as a single 
>>> "ink".
>>> With
>>> 45/45 the combined ink 100 patch reads 39.8 2.1 1.2 (50 was 60.2 1.1
>>> 0.9).
>>> A 40 warm/50 cool combo gives 41.1 1.9 -0.1 at 100 and 61.0 0.8 -0.1
>>> at 50.
>>> In the end I ran 36/56 without reprinting the calib.  Once I have 
>>> done
>>> the
>>> glop overcoat and linearized I will post the finals.
>>>
>>> Steve
>>>
>>>
>>>> From: Carl Schofield <scho@...>
>>>> Reply-To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
>>>> Date: Mon, 21 Feb 2005 13:05:44 -0500
>>>> To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
>>>> Subject: Re: [Digital BW]  QTR neutral curve PKN, UT7 Light 
>>>> warm/cool
>>>> grey
>>>>
>>>>
>>>> Which paper Steve?  I'm using that profile with both Kirkland glossy
>>>> and ilford smooth pearl and get neutral prints on both with UT7 LC 
>>>> and
>>>> UT7 LM at 45 each - no warm highlights.  Here are some LAB data for
>>>> the
>>>> Kirkland:
>>>>
>>>> 25%  68.70 0.36 -2.55
>>>> 50% 44.83 1.04 -2.18
>>>>
>>>> Carl
>>>>
>>>
>>>
>>>
>>>
>>>
>>>
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>>
>>
>>
>>
>> Please visit the Group Homepage to check the Files, and other 
>> resources as
>> they are often being updated.
>>
>> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint
>>
>> If you wish to receive no emails or just a daily digest, or you wish 
>> to
>> unsubscribe, please edit your Membership preferences by visiting this 
>> same
>> page.
>>
>> Please follow these basic guidelines:
>> - As threads develop, trim off excess portions of earlier messages to 
>> keep
>> them short.
>> - Good manners are required at all time. No personal attacks or 
>> flames.
>> Hostile, aggressive or argumentative users may be removed from the 
>> membership
>> without notice.
>> - Keep your posts and threads related to the group topic of digital 
>> B&W
>> printing. Users who persistently make off-topic posts may be removed 
>> from the
>> membership.
>> - By posting on this forum you agree to abide by the group rules and
>> guidelines, and to abide by the actions and decisions of the group 
>> Owner and
>> Moderators. See ╲Group Topic, Rules and Guidelines╡ in the Files 
>> section:
>> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/
>>
>> BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE DIGITAL BW, THE 
>> PRINT
>> YAHOO! GROUP YOU EXPRESSLY UNDERSTAND AND AGREE THAT THE ╲OWNER╡ 
>> AND
>> ╲MODERATORS╡ OF DIGITAL BW, THE PRINT YAHOO GROUP SHALL NOT BE 
>> LIABLE TO YOU
>> FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR 
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>> DAMAGES, INCLUDING BUT NOT LIMITED TO, DAMAGES FOR LOSS OF PROFITS, 
>> GOODWILL,
>> USE, DATA OR OTHER INTANGIBLE LOSSES (EVEN IF THE  ╲OWNER╡ AND 
>> ╲MODERATORS╡ OF
>> DIGITAL BW, THE PRINT YAHOO GROUP HAVE BEEN ADVISED OF THE 
>> POSSIBILITY OF SUCH
>> DAMAGES), RESULTING FROM: (i) THE USE OR THE INABILITY TO USE THE 
>> DIGITAL BW,
>> THE PRINT YAHOO GROUP; (ii) UNAUTHORIZED ACCESS TO OR ALTERATION OF 
>> YOUR
>> TRANSMISSIONS OR DATA; (iii) STATEMENTS OR CONDUCT OF ANY THIRD PARTY 
>> ON THE
>> DIGITAL BW, THE PRINT YAHOO GROUP; OR (iv) ANY OTHER MATTER RELATING 
>> TO THE
>> DIGITAL BW, THE PRINT YAHOO GROUP.
>>
>> Yahoo! Groups Links
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>>
>>
>>
>>
>>
>>
>
>
>
>
>
> Please visit the Group Homepage to check the Files, and other 
> resources as they are often being updated.
>
> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint
>
> If you wish to receive no emails or just a daily digest, or you wish 
> to unsubscribe, please edit your Membership preferences by visiting 
> this same page.
>
> Please follow these basic guidelines:
> - As threads develop, trim off excess portions of earlier messages to 
> keep them short.
> - Good manners are required at all time. No personal attacks or 
> flames. Hostile, aggressive or argumentative users may be removed from 
> the membership without notice.
> - Keep your posts and threads related to the group topic of digital 
> B&W printing. Users who persistently make off-topic posts may be 
> removed from the membership.
> - By posting on this forum you agree to abide by the group rules and 
> guidelines, and to abide by the actions and decisions of the group 
> Owner and Moderators. See „Group Topic, Rules and Guidelines‰ in the 
> Files section:
> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/
>
> BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE DIGITAL BW, THE 
> PRINT YAHOO! GROUP YOU EXPRESSLY UNDERSTAND AND AGREE THAT THE „OWNER‰ 
> AND „MODERATORS‰ OF DIGITAL BW, THE PRINT YAHOO GROUP SHALL NOT BE 
> LIABLE TO YOU FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
> CONSEQUENTIAL OR EXEMPLARY DAMAGES, INCLUDING BUT NOT LIMITED TO, 
> DAMAGES FOR LOSS OF PROFITS, GOODWILL, USE, DATA OR OTHER INTANGIBLE 
> LOSSES (EVEN IF THE  „OWNER‰ AND „MODERATORS‰ OF DIGITAL BW, THE PRINT 
> YAHOO GROUP HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES), 
> RESULTING FROM: (i) THE USE OR THE INABILITY TO USE THE DIGITAL BW, 
> THE PRINT YAHOO GROUP; (ii) UNAUTHORIZED ACCESS TO OR ALTERATION OF 
> YOUR TRANSMISSIONS OR DATA; (iii) STATEMENTS OR CONDUCT OF ANY THIRD 
> PARTY ON THE DIGITAL BW, THE PRINT YAHOO GROUP; OR (iv) ANY OTHER 
> MATTER RELATING TO THE DIGITAL BW, THE PRINT YAHOO GROUP.
>
> Yahoo! Groups Links
>
>
>
>
>
>
>

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