Re: Lighting question
Re: Lighting question
- Subject: Re: Lighting question
- From: "jc castronovo" <email@hidden>
- Date: Fri, 19 Nov 2004 09:04:22 -0500
----- Original Message -----
From: "Roger Breton"
> Steve wrote:
> >> just remember that there is no such thing as a D50 bulb (yet). D50 is a
> > standard spectral curve that man has yet to duplicate with any bulb. You
> > will find a lot of bulbs labeled 5000K and that's a start. Look for a
high
> > CRI value as well.
>
> John replied:
> > And low U.V. emissions too.
>
> What function is low UV emission of, in your opinion?
U.V. will make the proofing stock glow. The paper you're going to eventually
print on or the original you're matching may glow more, less or not at all.
Best to eliminate it. The industry has gone full circle on this according to
the engineer I spoke with at GTI who sells proofing lamps and booths. They
had some u.v. in their tubes, then a lot, and now the newest tubes have
almost none. If you have one and your printer has another bad things can
happen. Ask me how I know!
jc
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