Re: Fwd: ColorBurst RIP update
Re: Fwd: ColorBurst RIP update
- Subject: Re: Fwd: ColorBurst RIP update
- From: John W Lund <email@hidden>
- Date: Wed, 29 Nov 2006 10:22:05 -0800
Terry Wyse <email@hidden> wrote:
>
> Below from Larry Spevak of ColorBurst Systems. ...<snip>...
>
> Begin forwarded message:
>
> Regarding ColorBurst's requirement for a UV Cut Filter. All of our
> Lin files and Profiles are made with a UV Cut DTP70. Until recently,
> all of our media Profiles were built using a Chroma Linearization.
>
> The UV Cut filter is used because in the event that a media had any
> UV response, during Linearization, the Yellow would reverse between
> Paper White and the 5% to 10% patches. The Paper White would have a
> Blue Chroma, then at 5% Yellow, the a Chroma is near 0 and at 10% and
> beyond, there's a Yellow Chroma. If there's no UV filter, the
> resulting Profile does have problems in the highlights.
>
-- That was exactly my experience when I tried to use a non-UV EyeOne to
linearize Hahnemuhle Fine Art Pearl paper. Even a ProfileMaker profile would
not correct for the yellow bump in highlights.
Switching to a UV-cut Pulse for lin & SpectralVision Pro profile produced
very nice results.
(nevertheless, I'm delighted to hear they will be adding L*a*b*-based
linearization capability)
John
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden