This is the 11th in a series of posts on the Sony a9. The series starts here. Warning: this is a yet another techie post about esoteric aspects of camera sensor analysis and modeling. There is not much to learn here that applies to general photography. If you aren’t interested in these things for their own sake,… [Read More]

This is the tenth in a series of posts on the Sony a9. The series starts here. Warning: this is a techie post about esoteric aspects of camera sensor analysis and modeling. There is not much to learn here that would apply to general photography. If you aren’t interested in these things for their own sake, do… [Read More]

This is the ninth in a series of posts on the Sony a9. The series starts here. There have been reports of Sony a9s shutting down because of internal temperature buildup. There are many camera modes that can affect power consumption, and I hope to eventually be able to do the fixturing to measure that… [Read More]

This is the eighth in a series of posts on the Sony a9. The series starts here. Note: this post has been extensively revised to correct modeling errors that result from a series of anomalies in the a9 photon transfer curves. To get around this problem, I had to prune out the data in the problem… [Read More]

This is the seventh in a series of posts on the Sony a9. The series starts here. In the last post, we looked at the pixel response non-uniformity (PRNU) of the Sony a9, and found that there were some periodic components, which are usually more visually disturbing than random ones. Now I’m going to show you… [Read More]