Jim Kasson
I’ve been a photographer since high school, and an electrical engineer all of my professional life. The two things came together for a while. From 1989 until the middle of 1995, I worked as an IBM Fellow at the Almaden Research laboratory south of San Jose, CA. For those six years, my principal area of research was color management, color processing for digital photography, and color transformations such as gamut mapping. At other times in my career, I researched speech recognition and speech bandwidth compression and developed data acquisition and process control computer systems, telephone switching systems, and data communication systems. I retired in 2000, and for the last 22 years when I’m not serving on NFP boards unrelated to photography, I’ve been spending most of my free time making photographs.
Posts by Jim Kasson · page 2 of 2
How to Expose Raw Files – Part 1
Throughout the two-century history of photography, the subject of exposure has been repeatedly addressed and hotly debated. In the film era, people talked about exposure and B&W’s negative development in two ways. At first, when most of the photography was done with sheets and plates, it was…
How Your Camera and Image Processor Determine Colors
The Internet is full of debates along the lines of: - Whether Sony colors are better than Nikon colors - Whether Canon colors are better than Sony colors Sometimes, people are talking about in-camera JPEGs, and it is possible to have a moderately fruitful discussion. How fruitful it might be…
How Your Camera’s Focus Bracketing System Works
For many years, photographers have had focus-stacking programs like Helicon Focus and Zerene Stacker. You can now get the capability in some general-purpose image editors like Lightroom and Capture One Pro. Focus stacking software takes as input a series of images of the same subject with the focal…