Ron, We have been using the Spyder3Elite since 2010 or so. All the photolab monitors and all the exam room monitors. In photography, we found 2 monitors incapable of being properly calibrated, so we replaced them. In the clinic, we found the same issue, but just moved those monitors to lesser used rooms. For the most part, i think the failure of every monitor in calibration was due to not being able to hold a set brightness - when i sat there watching the device read all the colored squares on the screen, i realized just how awful of an image some of the monitors produce. The issue now is that some doctors are switching over to tablets and we don't have any ability to get the same color correction. I believe the Spyder3 has been replaced with the Spyder4 --> http://www.amazon.com/Datacolor-Spyder4Elite-S4EL100-Colorimeter-Calibration/dp/B006TF36TM/ About all it took to convince the doctors to make the purchase was showing them the same fundus image on 3 different monitors in the office, then reminding them how slide film was "color balanced" for us in processing - so we needed to at least make our monitors match. I used to check all monitors once a month, but none changed within the first six months, so now i check them about every 6. -sandor On Sun, Jul 28, 2013 at 3:05 AM, Ron Zielinski <ronzielinski@xxxxxxx> wrote: > Any recommendation from those out there who have calibrated their monitors. > Spyder or Color Munki? Others. Just need basic software and something easy > to use. > > Thanks in advance…… > > > > > > ronzielinski@xxxxxxx > > > >