I wasn't interested in spending a ton of money on equipment that I'd only effectively use three times, for each of the three cameras I own. The method I adopted is based on single-image capture of a diffraction-produced spectrum. But I'm a photographer, not an optics engineer I just want to make decent images with tools that are up to the task. I've already read the previous threads on such ways, and know my method is not the best available. What I want to do here is summarize the method upon which I finally settled, put it in front of persons I know have the chops to provide constructive criticism. If one wants to follow the journey I took, read this: And so, wrestling control of extreme colors became a thing, and making camera profiles from spectral sensitivity data became a personal endeavor. Wow, did that look bad, blotchy and posterized blue patches on the walls and ceiling. And did I did just fine with it until one day I came back from a choral performance where I'd taken pictures of the stage lit with blue accent spotlights. Over recent years, I've encountered various writings and utterances of the general form, "using SSF data for camera profiling is good." Okay fine, nice to know, but I had to get on with taking pictures.
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