Hello All, Regarding the M1 instruments. Would all them read identically and accurately? Can the results be verified or calibrated to a Standard to ensure they are accurate? Thank you. Regards, Gerry Gerlach -----Original Message----- From: eci-en-bounces(a)lists.callassoftware.com [mailto:eci-en-bounces@lists.callassoftware.com] On Behalf Of Jan-Peter Homann Sent: Monday, May 26, 2014 7:28 AM To: eci-en(a)lists.callassoftware.com Subject: [ECI-EN] Fred15 project - M1 paperwhite for PC1 coated premium -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Hello all, ECI recently published at http://www.eci.org/en/projects/fred15 materials for testing colormanagement workflows according the new ISO 12647-2:2013 standard. This includes characterization-data und ICC-profiles for coated and uncoated papers in offset printing. One interesting topic is for me the question of the M1 paperwhite characterization for "premium Coated". The new ISO 12647-2:2013 defines the M1 paperwhite as L* 95 a*1 b*-4 - From my experience, the average of the most premium coated papers for offset printing has a M1 paperwhite in the area of e.g. L*95 a*1,5 b*-6 The Fred15 project delivers 3 different beta versions of characterization-data for premium coated: 1) Spot on data (spectral (!!) data created by Heidelberg The header of the characterization data does not state, if it is M1 or M0 data. Paperwhite is L* 95 a*1 b*-4 2) FOGRA51 beta M1 L* a* b* based data paperwhite is L*95 a*1,5 b*-6 3) FOGRA51 beta M0 L* a* b* based data paperwhite is L* 94,89 a*1 b*-4 - From my testings with proofs and prints under new ISO 13655:2009 reference lightning, it is important, that we have in standard characterization a realistic M1 paperwhite, which matches the average of the real world paper type as close as possible. From my current state of experience, I would prefer FOGRA51 M1 data (ideally in a spectral version as the spoton data from Heidelberg, Spectral characterization-data are allowing - especially for packaging - - much better simulation of the interaction of CMYK and spotcolors in printing.) Furthermore I would like to see an addendum or even a revision of ISO 12647-2:2013 to have M1 whitepoint included, which are reflection the average of a given paper type / paper category. Concerning hardcopy proofing, I would like to see a recommendation of a M1 paperwhite for semi matte proofing papers, which is very near to M1 L*95 a*1,5 b*-6 Best regards Jan-Peter Homann - -- homann colormanagement --------- fon +49 30 611 075 18 Jan-Peter Homann ------------ mobile +49 171 54 70 358 Cotheniusstr. 3 -------- http://www.colormanagement.de 10407 Berlin -------- mailto:homann@colormanagement.de _______________________________________________ ECI-EN mailing list ECI-EN(a)lists.callassoftware.com http://lists.callassoftware.com/mailman/listinfo/eci-en ______________________________________________________________________ This email has been scanned by the Boundary Defense for Email Security System. For more information please visit http://www.apptix.com/email-security/antispam-virus ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the Boundary Defense for Email Security System. For more information please visit http://www.apptix.com/email-security/antispam-virus ______________________________________________________________________