Hi Marttila A well made Dupont 'DP10' proof from a AQ4 machine acceptably matches the targets and tolerances of the paper type 2 colour space and TVI curve B in the ISO 12647-2:1996 specification. In fact the proof when compared with a near perfectly ISO calibrated press print looks almost identical. There is a slight difference in greys between the two prints - the Dupont proof being slightly green or the ISO print being slightly warm depending on your preference. Either way the similarity between the proof and print is very good. The recently launched ( Nov 2004 ) ISO 12647-2:2005 specification colour space Lab targets and tolerances have been revised and tightened, Magenta and Yellow colours are now significantly different to those specified in ISO 12647-2:1996. Particularly noticeable when comparing the DP10 proof to New ISO print is the 'vibrancy' of Magenta and especially Red colours of the New Specification. In short the standard 'DP10' curve proof does not conform to the New ISO specification. Alan Dresch -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.8.7 - Release Date: 10-02-05