Re: Densitometer - reading proof color bars
Paul,
Listen to Preacher Rich Apollo. Densitometers are for printers measuring their ink densities and Gray Balance (and can do as good as if not better job on a press than spectrophotometry). But for proofs, because they don't use the same inks and substrate and there are optical brightners in the inkjet coatings sometimes, density is false worship before the golden calf! (actually a brownish-yellow calf if you try).
You need Spectrophotometry - you need to measure colour not density. The printer will take care of his ink densities and try to match your proofs. You can get combination Spectro-Densitometers such as the X-Rite DTR508. I thought DuPont supplied spectros with all their digital proofers?
Pick your colour standard, pick your press method, measure and adjust colour, profile to same and vary ye not one thing if ye wanteth consistent results. The little Spectro-Eye and Eye-One type products mentioned earlier measuring, say the Gracol, FOGRA, Calathumpian strip or whatever, do a very good job.
If its ISO you're after, you could do a lot worse than contact Alan Dresch of Mellowcolour in UK.
www.mellowcolour.com .
(Colour with the 'u' for American friends)
.
Kind regards
Andy in Australia