In another forum, a reader asked for the raw files associated with one of my Last Word posts. He wouldn’t tell me why he wanted them or what he was going to do with them, so it was a no-brainer to decline. He was not pleased. The incident did have an upside, though: it got… [Read More]
Archives for March 2018
My worst camera
Today’s cameras are marvels. It’s hard — impossible? — to find a truly bad one that costs more than, say, a thousand bucks. And there are plethora of truly great ones, cameras with capabilities that were the stuff of science fiction a generation or two ago. Today, I’m going to tell you about the worst… [Read More]
Sony a7III PDAF striping vs aperture
It seems to be conventional wisdom (or as close as we can come to conventional wisdom about a relatively new phenomenon) that the PDAF striping in the Sony a7III only occurs at wide apertures and with fast lenses. Rishi Sanyal was kind enough to run a series of images of an overexposed circular light source with… [Read More]
a7III, a7RIII, a7II, a7SII, a9 PDAF striping
Rishi Sanyal of DPR made some test exposures of a centrally-positioned circular light source with several cameras: the Sony a7III, a7RIII, a7II, a7SII, and a9. In all cases, he used a Sony 85/1.8 wide open. The exposure was set to expose the light source sufficiently far so as to generate a lot of flare. I put… [Read More]
GFX FW 3.0 focus bracketing with the 120/4 macro
Fujifilm just released firmware 3.0 for the GFX 50S. One of the new features is what Fuji calls Focus Bracketing. In my opinion, it is misnamed, as it is optimized for making exposures for stacking. However, I’ll use their terminology here. It works a lot like the Focus Shift Shooting feature in the Nikon D850…. [Read More]