According to Digilloyd on Macperformanceguide, Th current 5K imac are superb for viewing photographs. However, one cannot calibrate this monitor as usual, and although images look terrific, the gamut of this monitor is not as wide and and NEC for example.
This leads to the question, that if one cannot calibrate the monitor, how does one get accurate color when printing?
Community experience?
MDIJB