This is the 13th 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. The more I try to understand what’s going on with the Q2M ISO highlights, the more complicated… [Read More]
An AA workshop in the golden era
I posted this picture of Ansel Adams on the DPR medium format forum. I made it in August, 1983, at one of the annual Friends of Photography Ansel Adams workshops at Weston Beach in Point Lobos, never printed it, and found it yesterday when I was going through some old negs for scanning. The workshop… [Read More]
How to practice
Someone on DPR asked about one of the Ansel Adams Friends of Photography workshops that I attended in 1983. In preparation for answering the question, I consulted a notebook that I used for every workshop I’ve taken. My first session was with Ruth Bernhard, who had brought her assistant, Michael Kenna, along. One of the… [Read More]
Subscribe to comments — going once…
Does anyone use the subscribe to comments feature on this site? If you do, let me know in a comment to this post. In the absence of objections, I’m planning to remove it. I like to keep the number of plugins small. I installed the feature at the request of one person, from whom I’ve… [Read More]
Observer metameric error in simulated cameras, part 3
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]