the last word

I’ve finally delivered all the prints that sold during the CPA In Motion show. It’s taken me longer than I expected because of two large(ish — the definition of a large photographic print has been changing over the last ten years) prints. I normally print the Staccato images on C-size — 17×22 — Exhibition Fiber… [Read More]

There’s an oft-told line about how the Apple II made its way into businesses in the late 1970s and early 1980s. Thousands of businessmen walked into computer stores and said. “Sell me a copy of Visicalc and something to run it on.” I just bought a Mac. It’s been more than ten years since I… [Read More]

For the couple of weeks, I have been spending way too much time trying to develop a way to demosaic infrared raw files without interpolation. My reasoning is that, with a deep IR filter in front of the sensor, that the spectral response of each of the color filter array (CFA) planes is pretty close… [Read More]

I was unable to figure out why Lightroom is boosting the brightness and chroma of 32-bit floating point TIFFs imported into it, so I reluctantly decided to use the correctly-exposed synthetic image with the minus one-stop Lightroom Exposure adjustment as the reference and compute errors from it. I computed the CIEL*a*b* Delta-E stats of the… [Read More]