Hi I think the P3 re the new iMac screens refers to the DCI P3 spec. See this link for more info: http://www.noteloop.com/kit/display/color-space/dci-p3/ Seems to be around 93% of Adobe RGB. Regards Paul Sherfield Telephone : + 44 1442 207626 Mobile: + 44 7899 906385 http://www.missinghorsecons.co.uk http://twitter.com/#!/missinghorse Apple Solutions Expert - Print & Publishing Member - UK TC130 Technical Advisory Group (ISO 12647 Printing Standards) UK Expert: ISO TC130/Working Group 13 on certification of printing standards Chair ­ BPIF UK ISO 12647 Certification Steering Group Member - BPIF Technical Committee Lean and green? To save money and become a greener printer, see http://www.greenprinter.co.uk http://www.keeconsultants.com Reduce your carbon footprint http://www.1010uk.org This email and any attachments may be confidential and are intended solely for the use of addressee. If you are not the intended recipient of this message, any disclosure, copying or other distribution is strictly prohibited and may be unlawful. If you have received this message in error, please notify the sender and delete all copies from your system. Email may be susceptible to data corruption, interception and unauthorised amendment. We do not accept liability for any such corruption, interception or amendment or the consequences thereof. We do not accept liability for any action or inaction by the recipient as a result of advice or information contained within this email.