[Added 7/3/17: In this post, I am using the word criticism to mean the art or practice of judging and commenting on the qualities and character of photographic works. I don’t mean the word to imply that the comments are negative, although I clearly want to include that usage. In a comment below, Mike Nelsen Peddie… [Read More]

This is the first post in a long series on the subject of lens screening tests. To see links to all the other posts in this series, go to the bottom of this page — below the comments — and you will be able of click on each one in turn. For the past few days,… [Read More]

In the last couple of posts, I looked at the image quality (IQ) effects of Lightroom distortion correction with the Sony 12-24/4 lens on the a7RII, and the Fuji 23/4 lens on the GFX 50S. I found remarkably little in the way of unwanted action. A reader asked me about performing distortion correction in Photoshop… [Read More]

This is part 13 of a test of the Sony 12-24 mm f/4 FE lens. The test starts here.  Yesterday, I showed you some images that indicated that the new Lightroom lens profile for the Sony 12-24/4 worked quite well. Several people have expressed the opinion that correcting distortion in wide rectilinear lenses in post… [Read More]

This is part 12 of a test of the Sony 12-24 mm f/4 FE lens. The test starts here.  I reported here on the distortion in the Sony 12-24 zoom. At the time, there was no lens profile in Lightroom. as of today, there is, so I’ll give you all an update to look at… [Read More]