As (I hope) many of you know, I have been proselityzing as intensively as I can to get people to adopt my lens screening test. I’ve had some converts, and they have all enjoyed success with the method, but it’s been an uphill battle. Yesterday, I had a dispiriting Internet argument with someone who appeared… [Read More]
Atmospheric thermal turbulence demo
I’ve talked before in the context of lens testing about atmospheric turbulence and how it can wreak havoc on otherwise well-conceived testing. I try to avoid doing testing over great distances, but if I’m going to be doing such work, I try to do it first thing in the morning before the sun warms the earth. I… [Read More]
Debunking false claims about Sony a7III PDAF striping
A week or so ago, I published a FAQ about the Sony PDAF striping phenomenon that people noticed with some Sony a7III images. I had previously posted a little essay on tribalism in which I talked about two tribal reactions to the a7III striping. The striping on the a7III is a fatal flaw. You can never… [Read More]
Cross-polarization demo
I’ve been using cross-polarization in some of my studio work lately, and some have asked me about the benefits of this approach. In order to demonstrate them, I’ve created my first animated GIF. This is an a7III shot, using the CV 65/2 Apo-Lanthar and cross-polarized light. I set up a Godox 600 TL Pro strobe with… [Read More]
How I spend my time
Dorothy Parker is enshrined in literary apocrypha as saying, after being asked if she liked to write, “No, but I like to have written.” It turns out that, if she ever said it at all, several lesser-known writers beat her to the punch. Last week I got to thinking about how I’m spending my time…. [Read More]
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