Re: Rel vs Abs proofs
Re: Rel vs Abs proofs
- Subject: Re: Rel vs Abs proofs
- From: Graeme Gill <email@hidden>
- Date: Wed, 11 Oct 2006 13:13:59 +1000
Roger Breton wrote:
Would it make sense to argue that, in RelCol, users nevertheless expect the
RelCol of their harcopy proofs to be matched absolutely? Discounting the
absolute white point of the proofing substrate.
It's hard to understand what you're saying here. A RelCol rendering will
never match absolutely, unless the substrates have the same white point,
so such an expectation will only be met by a situation that makes RelCol
and AbsCol rendering indistinguishable (funny about that!).
Last but not least, this is more of a printing-related type of question,
would it make sense to argue further that, in order to match a RelCol proof,
as compared to match an AbsCol style of proof, everything else being
constant, a printing press will have to expend more ink? Because the colors
to be matched are, for all intents and purposes, more saturated?
Why would they be more saturated ? They could be, but this depend on the
white point shift between the press and the proof. For instance, if the
proof white point is whiter (more reflective) than the press white point,
all the RelCol colors will be shifted slightly in the +X,+Y, +Z direction,
and become slightly more saturated on the proof. Conversely, if the proof
has a slightly less reflective white point than the press, then the colors
will be shifted slightly in the -X,-Y,-Z direction, and will be less saturated.
Graeme Gill.
_______________________________________________
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