There are many possible reasons for a deviation between the proof and, for example, the monitor display:
- The monitor is not calibrated
Only calibrated monitors can accurately display color. When I buy a cheap monitor and connect it to my computer, I definitely can’t see any real color. As a rule of thumb, only a hardware-calibrated monitor has a chance for correct color.
- The monitor is calibrated, but the colors look different
A monitor below 1,000 Euro cannot usually be calibrated to good color representation for the standard color space ISOCoated V2, because it has a too small color gamut. Only real proof monitors are also designed and suitable for the display of proofable colors.
- The proof is not viewed under D50 standard light
Especially in winter the lighting conditions are often poor. And incandescent lamps, energy-saving lamps and conventional neon tubes only provide very poor colour reproduction. Without a D50 light source, a proof cannot be evaluated.
- The color settings in the software are wrong
Often the image editing software like Photoshop is simply installed and used without adjustments. The selected color profiles often do not correspond to the profiles used for proofing. Apple-Shift-K for Macintosh and Control-Shift-K for Windows show you your profile settings in Photoshop.
In general, no patent remedy can be given for the correct display of proofs for the monitor. However, if a proof is provided with UGRA/Fogra media wedge CMYK V3.0 and test report, the chances are high that it reproduces the required colors very precisely. If your monitor image does not correspond to the proof, the error usually lies with you. The list of causes above can help you in troubleshooting.