Hi digitaldog, I am glad you replied as I read with a lot of interest your old posts.
Let me give you a bit of background so you understand where I am and we can frame the discussion.
First of all I want to say that I am not an expert in color management (even though I am familiar with the concept of monitor calibration) so I struggle with the jargon most of the times. My previous monitor was a Dell U2414M, cheap and chearful and I always calibrated (GPU) via Colormunki and DispCal with great results. Now I bought a Dell UP2414Q which is a 4k wide gamut and has internal calibration that works with the supplied software (Dell Color Calibration Solution - I will call it DCCS) and 1i Display Pro (that I also bought). The new monitor has a range of options that I did not have before and I am a bit confused.
I have discussed the matter also here
http://en.community.dell.com/support-forums/peripherals/f/3529/t/19616624?pi23185=1#comments and here
http://en.community.dell.com/support-forums/peripherals/f/3529/t/19616853#comments there is a guy called yumichan who seems to know color management inside out but he is a bit arrogant and uses a jargon i don't understand.
The issues/doubts i have are the following:
1)
Blackbody vs Daylight. When I calibrate with DCCS and check the profile in Dispcal, in the measurement report I see that I always fail the whitepoint delta test. DCCS, contrary to the option selected, seems to calibrate to black body instead of daylight D65 (I say this because if I check the "assumed target whitepoint is blackbody" option top left of the measurement report I pass the test). How "bad" is that? Can you do photo editing with a monitor calibrated to black body 6500 vs D65? I understand from a post of yours from many many years ago (2006 -
http://forum.luminous-landscape.com/index.php?topic=9814.0) that the difference is small, is that still correct with 2015 technology?
2)
Native vs Custom Gamut. The guy on the Dell forum categoracally said that calibrating a wide gamut to Native is a non starter ("DCCS' "Native" target is a WRONG choice for 99% of users. It's true that it aims for native gamut but also to native white (GB-LED white is a green-white @7000K, out of daylight locus). My advice is to set manually R,G,B xy coordinates, and your desired gamma in "Custom" DCCS preset". I wanted to understand in simple terms what is wrong with "Native" and the supposed benefits of Custom, still not clear. He suggested to calibrate for R 0.685 0.31 while keeping G and B xy coordinates the same as in AdobeRGB space. I did this and I got results that are visually quite different (shadows more open in Custom vs Native), while the gamut coverage seems similar (I posted some charts in page 4 of that Dell forum discussion). Which one is "right"? Visually I prefer Native, but don't have a printer to test the results (I either post to my website or print books with Blurb, rarely print on my own).
3)
DCCS vs DispCal profile. The last doubt I have is whether I should keep the icc profile created by DCCS or profile in DispCal after the internal calibration with DCCS? I tried both and the output on screen seems identical (even though the DispCal measurement report tells me that its profile has lower Average and Max color delta). Still in DispCal if I pull up the gamut chart for both, the one with the DispCal profile has a much wider coverage (I posted the charts in that same page). In case a DispCal profile is advisable I was wondering what the best options are: so far I always used Curves + Matrix, No blackpoint conversation, but I am being told to use XYZ LUT with blackpoint compensation for wide gamut?
Sorry for the long post, many thanks in advance!