Re: Viewer fluorescents

[T3D Eric Goldstein <egoldste@xxxxxx>]

John B wrote:

> Do fluorescents get rid of the color temp problems of incandescents?

My understanding is pretty much yes for viewing, but no for taking.

> Do they create any new problems?

Yes, as you surmised:

> I think fluorescents are just a
> spread of (fairly broad) fluorescent peaks that fool the eye into
> thinking it's got black body radiation to work with.

Exactly, though in some cases the peaks aren't all that broad. Mercury
lamps really exaggerate this effect to the point of being uncorrectable.
It is difficult to effectively filter fluorescent lighting to any
specific film color temperature for this reason. New fluorescent
phospher technology is better than old, and we're at the point where
special fluorescents will work for television studio lighting and for
digital cameras. But both of these mediums undergo significant color
correction before we see "final" color.

> So how well do
> these peaks match the peaks of the dyes in the film

Wouldn't this vary with lamp type and film type?


Eric G.


------------------------------