Re: Media Testing for maclife.de
Re: Media Testing for maclife.de
- Subject: Re: Media Testing for maclife.de
- From: "edmund ronald" <email@hidden>
- Date: Fri, 12 Sep 2008 02:25:06 +0200
i think the i1 could be used to measure the spectrum of the flash.
Edmund
On Fri, Sep 12, 2008 at 2:13 AM, Eric Chan <email@hidden> wrote:
>> Yep. So it would be all the more useful if there was some
>> documentation about what Adobe considers usable illuminants
>> for their
>> DNG Profile Editor.
>
> The three reference illuminants used by the DNG Profile Editor are A, D50, and D65. D50 is used in the special case that the user asks to build a profile for "Both Color Tables" in the Chart Wizard tab. So the closer the actual illuminant is in spectra to one of these 3, the better it is when scene-referred colorimetry is what you're trying to maximize accuracy over.
>
>> Obviously, a fluorescent bulb would be a poor choice to use
>> with the
>> DNG Profile Editor.
>
> Not if you're planning to shoot regularly under those lighting conditions!
>
>
>> So would you say a studio flash and a halogen lamp, both
>> within 100 K
>> deviation from 6500 K and 2850 K respectively, are suitable
>> choices to
>> use for the DNG Profile Editor in a "normal"
>> usage scenario?
>
> The halogen lamp should be. I don't know what the characteristics of the flash are, however.
>
> Eric
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