The second RIP calibration step is to linearize the ink channels with their newly restricted ink limits. This generates a set of curves that should produce a tonal response that is rich in shadow color and neutralizes the combined gray axis. The problem here is that many RIPs are still using curve generation algorithms that were created a long time ago and haven’t been updated. These RIPs rely on the final profiling process to “fix” an imperfect linearization, and the results are “good enough” for many.

The G7 process introduced an excellent way of automating the curve generation process for neutralized gray axis that is especially useful to achieve press standards compliance like GRACoL and FOGRA. Standard G7 curves are very good but are limited to CMYK and often sacrifice deep shadow color on saturated fine art processes.

There is a simple solution that allows us to achieve optimal linearization on any rich color, fine art process. Simply print out the appropriate linearization target, measure, generate curves and bring them in to the RIP. The final result is gorgeous, natural tonality with deep shadow color that is better suited for profiling. Once we get around to making a profile, it won’t have to try as hard to correct an imperfect linearization.

Email us if you’d like to talk more about linearization or ChromaMax calibration at your location.