Raw histogram calibration for the Nikon D800E I have good news and bad news. The good news. The UniWB calibration procedure I’ve been working on went swimmingly with the 800E. The whole thing took five or six minutes (I’ve been doing this a lot, so I’m faster than the average bear). Four exposures, three Rawdigger… [Read More]

This is a continuation of analyzing the process variables involved in doing UniWB from an LCD monitor with only Rawdigger and Photoshop as the software tools involved. This post is statistical, technical, and nerdy. It is presented in the spirit of giving the interested reader to tools to replicate what I’m doing. If you’re just… [Read More]

Half of me would like to drop this in-camera histogram calibration project, since I’ve gotten it to the point where it works better for me than the Guillermo Luijk’s process, and is good enough for my use with iterations on the final step, but I’ve started down this road and I’m not going to quit… [Read More]

R=100, G= 64, B=100 is close, but a bit too blue. I modified the Matlab program to create a target with finer steps: I added the fine-step image as a layer in Photoshop, over the coarse one, and filled the Linear Dodge layer with R=93, G= 0, B=85. Here’s the layer structure: I photographed it,… [Read More]