If you don't like the result, you can always re-select the default factory profile.So, I’ll be real off the bat, I’m not a huge fan of technology.
In any event, it cannot hurt if done properly, and will provide a base setting to use as a reference. This can be confirmed by flipping between the generated calibrated profile and the default Apple RGB profile in Preferences-Display-Color and comparing the output. Color Management is an extremely complex subject, and I tried to keep it to simple to understand terms in this reply.Īnd despite what others may say, the screen is not calibrated almost exact in color match to neutral inherently in the default profile (yes, I know Apple claims this for the 2013 iMac screen, but still the displays vary), color balance can vary greatly from display to display as the default profile is a generic one, and calibration does benefit in most, if not all cases. I hope this is of some help, I'll clarify something if it is still unclear. The changes are made to the graphics card lookup tables to compensate, as opposed to adjusting the RGB levels manually. You do not have the capability to adjust RGB levels on a iMac screen, the controls to do so are just not there. The recommended setting for luminance from most publication writers is 120 cd/m2, which is too bright in my opinion to match print output, however, that is your personal choice to make based on your preferences for a bright or accurate screen display. You want to set 2.2 Gamma, Color temperature to 6500K (unless you have special lighting requirements, if you do, you know what I mean already by this) and luminance I set is 90-100 cd/m2, so as to closely match maximum paper white from the printer, so prints do not appear too dark relative to the screen.
I have not used a Spyder to calibrate my screen(s), but I do use the X-Rite Display Pro 2 and i1 Photo spectrophotometer and associated software, so the device is different, but the principal is the same. The reference is for the i3 model, however, the displays used are the same for all 27" models in that year. See this link for more info on the 2010 iMac 27' display. The Gamma should be set to 2.2 on your Spyder calibration program. The 27' iMac screen for 2010 is an LCD, IPS display with a white LED as the illumination source, it is not "wide gamut" which usually refers to the ability to display the full (or close to full) Adobe RGB standard gamut, it is "sRGB" in response.
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