NEC do source a colorimeter from X-Rite that has been modified with a filter to work on wide-gamut displays. I've been using it with dispcal to profile mine and it works fine without a correction matrix file. I have followed the Ethan Hansen evaluations with great interest but even he pointed out that these corrected colorimeters do a good job for the monitors they were designed for. Of course if you have the appropriate instrumentation you can prepare your own correction matrix using the tools that Graeme has developed. Alan -----Original Message----- From: argyllcms-bounce@xxxxxxxxxxxxx [mailto:argyllcms-bounce@xxxxxxxxxxxxx] On Behalf Of Rishi Sanyal Sent: Monday, June 20, 2011 3:59 PM To: argyllcms@xxxxxxxxxxxxx Subject: [argyllcms] Re: Dell U2711 - is it any good? The correction matrix is something they download into the firmware on the colorimeter. Try: http://lumita.com/site_media/work/whitepapers/files/xrite-wp-3a.pdf On Mon, Jun 20, 2011 at 12:15 PM, Knut Inge <knutinh@xxxxxxxxx> wrote: >> Knut, the Spyder 3 is a colorimeter, yes? As a colorimeter, it's not >> going to work well on wide-gamut displays unless the correction matrix >> supplied by the manufacturer is for wider-gamut displays. Even then, >> there's bound to be some inaccuracy. Your best bet is to use a >> spectrophotometer to either make the profile, or to at least make the >> correction matrix for YOUR monitor + colorimeter combo, then use the >> colorimeter with that correction matrix.