I’ve been looking at ways to tame the excessive sharpening that Sigma Photo Pro introduces to images from the Merrill cameras, and I’ve discovered a really good workaround. During a discussion of that scheme, a reader suggested that I look at the Merrill colors. A long-time DPR member whose handle is xpatUSA provided me with… [Read More]

This is the 46th in a series of posts on the Hasselblad X2D 100C camera and the XCD lenses. You will be able to find all the posts in this series by looking at the righthand column on this page and finding the Category “X2D”. In informal testing the background bokeh of the Hasselblad XCD… [Read More]

This is the 43rd in a series of posts on the Hasselblad X2D 100C camera and the XCD lenses. You will be able to find all the posts in this series by looking at the righthand column on this page and finding the Category “X2D”. Some casual shooting with the new 90/2.5 XCD lens left… [Read More]

While I was looking at the Sigma DP1 Merrill Studio Scene raw file, I decided to look at some raw histograms. This is the histogram of the whole image: It’s a 12-bit analog to digital converter (ADC). The putative blue channel (what I call the white channel in a Foveon sensor) has about 50,000 pixels… [Read More]

I’ve never owned a Foveon camera, but I’ve owned many cameras that could capture 3 color channels at each pixel location. The cameras I’ve owned don’t produce images that look like a lot of Foveon camera images I’ve seen. I’ve been curious as to why, and have reported in this blog on some of the… [Read More]