Re: Solux Bulb color temperature
Re: Solux Bulb color temperature
- Subject: Re: Solux Bulb color temperature
- From: "Fleisher, Ken" <email@hidden>
- Date: Tue, 17 Feb 2009 09:41:27 -0500
- Thread-topic: Solux Bulb color temperature
On 2/17/09 9:33 AM, "Andrew Rodney" <email@hidden> wrote:
> Because D50 is an exact color where Kelvin is a range of colors (many
> colors correlate to the same kelvin value). I think as well that you
> would want the 4700K bulbs.
>
> I was also told, the newer "5000K" bulbs are for those who refuse to
> accept anything not labelled as such.
I'm not sure I would agree with that assessment. If I could get closer to
5000K, why wouldn't I want to? Based on the paper by D. Pascale and R.
Breton noted in a previous post, the 5000K bulbs do quite well in conforming
to the P1 condition for proofing. The 4700K bulb did not perform as well
overall (though still excellent result), even when in overdrive to get the
CCT closer to 5000K. The results can only degrade if run at normal wattage
at 4700K (assuming that you actually get 4700K and not 4450K as we are
getting). In this regard, I can't see how the 4700K bulb might be preferred
over the 5000K bulb for this purpose. (Except maybe if it is not bright
enough in your configuration...)
--
Ken Fleisher
Photographer
Imaging & Visual Services
National Gallery of Art
Washington, D.C.
Phone: (202) 712-7471
email@hidden
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