Florian, thank you for the info on the verify tool. I'm trying to run it, but it doesn't do anything... I have copied both .ti3 files for the i1Pro (filename: i1Pro.ti3) and for the i1D3 (filename: i1D3.ti3) into the bin directory inside the Argyll directory. I'm using Win 7 x64 Ultimate, I've added the bin directory of the Argyll folder to the system path. In a command prompt, I've switched to the Argyll directory and I run this command: "verify -v i1Pro.ti3 i1D3.ti3" It does not do anything. Running just "verify" returns "VERIFY is off". So I ran "verify on" which returned "VERIFY is on". Still the above command "verify -v i1Pro.ti3 i1D3.ti3" does not return anything, no output whatsoever. Does it save a report somewhere ? Btw, I also tried running these command inside the bin directory of the Argyll folder, same result. I've read the verify tool documentation, I seem to be doing everything by the book. Any idea why it's not working ? Thanks. - Mike Nagel 310.746.8131 -----Original Message----- From: argyllcms-bounce@xxxxxxxxxxxxx [mailto:argyllcms-bounce@xxxxxxxxxxxxx] On Behalf Of Florian Höch Sent: Tuesday, September 25, 2012 7:33 AM To: argyllcms@xxxxxxxxxxxxx Subject: [argyllcms] Re: General Questions Am 25.09.2012 12:03, schrieb Michael Nagel: > Yeah, just the delta E values of the same reference patterns would > already indicate how much a colorimeter is off to a given reference spectro... > > So what usage of the verify tool did you have in mind to get that data ? verify -v spectro.ti3 colorimeter.ti3 -- Florian Höch