Re: to UV filter or not to UV filter...
Re: to UV filter or not to UV filter...
- Subject: Re: to UV filter or not to UV filter...
- From: Andrew Rodney <email@hidden>
- Date: Tue, 25 Feb 2003 06:50:25 -0700
on 2/24/03 10:57 PM, german wrote:
>
In this case, I have one question:
>
ProfileEditor have one function, called "Update Profile". And first step -
>
1. Print the CMYK linearization test chart and measure it in the
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MeasureTool.
>
>
Do I have use UV-cut filter in this case?
I don't think so but here's what I got on the topic from GretagMacbeth:
>
if you need the UV-cut or the No-Filter version of a spectrometer (e.g. the
>
Eye-One) depends on your application. To most important factor is the
>
mathematical model inside your application software. If the mathematical
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model can handle the effects of brighteners in the paper you can always use
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the normal version. If not you need the UV-cut version.
>
Rule of thumb in color management for a D50, D65 environment:
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1) If you only want to calibrate (linearize) your output device, a UV-cut
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measurement device will have a superior performance.
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2) If you have a one step CMS output profiling process that does the
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calibration and characterization of your output device in one step you
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normally get better results with a No-filter device (e.g. desktop inkjet CMS
>
workflow with Eye-One match).
That leads me to believe you do NOT need to use UV for the post
linearization since it's an update to an existing profile. But I could be
way off.
Andrew Rodney
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