Anders Torger wrote: Hi, > I'm thinking about a workflow with 500 - 700 patches, single-pass (ie > no preconditioning). My rationale is that as the printers are more > linear today and I don't need the highest end in terms of hue accuracy > it should be enough, and I'm also thinking that with fewer patches it's > more likely that the resulting profile will render gradients smoothly. Start simple and work up in complexity as you feel it is needed. It's pretty simple to figure out if a separate linearization/calibration step is warranted on a printer - if you print a standard image in a standard colorspace on the printer, does it look roughly right in terms of its tone ? Running into a raw printer with high dot gain, the answer will be "no, it looks way too dark". So you would calibrate it first. Most printers that provide a fake RGB print path should look roughly right, unless you've changed one of the printing control parameters, or something about the paper and/or inks is very different from what it is expecting. Graeme Gill.