This is the 20th in a series of posts on color reproduction. The series starts here. X-rite publishes ColorChecker reference color values by illuminating their targets with D50 light, not by publishing the spectral responses for each patch. If you want to convert the X-Rite values to a color space with a white point that’s… [Read More]
Hills in color
A few color images I’ve developed over the last couple of days. Most of them were exposed at dawn. No composites here.
Is sensor technology maturing?
Maturing, in the negative sense, aka slowing down. One of my former employers, IBM, had a similarly Orwellian take on language from time to time. One of my favorites was “stabilize”, as in “We’re gonna stabilize that product line.” Sounds good, right? What it actually meant was that we’re going to stop making improvements, and,… [Read More]
Fog across the way
Yesterday, just before noon, I noticed some fog forming on the hills across from my house. I ran outside with my color Sony a7II — the IR cameras cut through the fog, which is not what I wanted — and got about ten minutes of making exposures before the fog blew away. Here are three… [Read More]
How do adaptation errors add?
This is the nineteenth in a series of posts on color reproduction. The series starts here. You don’t have to read the whole thing if you don’t want to. I’ll try to make this post reasonably self-contained. If you get confused, reading the series from the beginning may be useful. In the previous post in… [Read More]
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