This is the 17th post in a series about the Leica Q2 Monochrom. You can see all the other posts in the series by looking in the Category List drop-down menu on the right side of the page. Earlier, I compared the Q2 Monochrome (Q2M) to a GFX 50S, which has similar pixel count. Several… [Read More]
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Leica Q2 Monochrom highlight linearity at ISO 100
This is the tenth post in a series about the Leica Q2 Monochrom. You can see all the other posts in the series by looking in the Category List drop-down menu on the right side of the page. When I looked at the engineering dynamic range (EDR) of the Q2 Monochrom, I stumbled onto the… [Read More]
Moving away from Sony cameras
I’ve been using Sony cameras for well over ten years. When they came out with the NEX series of APS-C MILCs, I was all over them. I fully committed when they introduced the alpha series of FF MILCs. The Sony FF cameras, I have owned: a7R a7 a7RII a7II a7RIII a7RIV a9 a9II RX1R I’ve… [Read More]
Observer metameric error in simulated cameras, part 2
In previous work for a project about observer metameric errors in digital cameras, I built a program that, given a target color and a set of sample reflectance spectra, will: Using principal component analysis, find a set of basis functions for the sample set Assuming the set is lit with a particular illuminant (I used… [Read More]
Optimal CFA spectral response
There is a widespread belief about Bayer color filter array (CFA) response spectra. It goes something like this: The old CCD cameras used to have great color. The reason they had such good color is the dye layers in the CFA were thick. Thick dye layers led to highly selective (narrow band) spectral responses. Modern… [Read More]
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