Posted by PTRAVEL on 07/03/06 04:53

"Bill Farnsworth" <bill.farnsworth@verizon.net> wrote in message
news:7u0qg.168$0G2.59@trnddc07...
>
>> PTravel wrote:
>>> Sodium vapor lights are the common night time illumination in most
>>> cities in the world, and put out a distinctive yellow light. Because
>>> they work by exciting sodium atoms, the light output is a very narrow
>>> spectrum, i.e. it's not just a question of being warmer or cooler --
>>> there simply are no other bandwidths present. Naturally this results in
>>> anything being videotaped as appear, essentially, monochromatic (for an
>>> example, see here:
>>> http://www.travelersvideo.com/amsterdam%20at%20night.wmv)
>>>
>>> Is there any way around this to get, if not a more accurate color
>>> rendition, at least a more interesting one? Short of bringing my own
>>> lights, which is not feasible at all, I can't think of anything that
>>> will add spectra that simply aren't there.
>
> Nice stuff Paul.
> There really isn't much you can do with limited resources other than some
> correction in post. (bringing a chip chart and shoot that under the light
> for reference can help later in post)
> However............
> Get yourself a rosco cinegel color correction sample set. (1 1/4" x 3")
> Then you can experiment with white balance through different correction
> filters.
> Or add it as correction filtration
> I'm thinking that something in the Tough Plusgreen family and Tough WF
> green either added at the lens or subtracted through white balance might
> bring you a wee bit closer to what you are looking for.
>
>
> Bill F.

Thanks, Bill!


>

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