A short while ago, I reported on the shutter latency of the Sony a7III using the all-mechanical shutter. I repeated the tests today using the EFCS, and added the a7RIII and a9. The a7III latency is a lot less with the EFCS, since the camera doesn’t have to wind the shutter before it can get the… [Read More]
Archives for June 2018
Arca-Swiss plate dimensions
Two days ago, I reviewed the SmallRig plate for the Sony a7III/a7RIII/a9 cameras. I found that the shoe that engages the tripod head clamp was wider than the Really Right Stuff (RRS) plates, making engagement with the cam-lock quick-release RRS clamps very tight. Today, I measured the dimensions of the bottom of a group of… [Read More]
Sony a7III, a9, a7RIII SmallRig camera plate
I just received a couple of the SmallRig Arca-Swiss plates for the latest generation of Sony alpha 7 and 9 cameras. They are quite a bit cheaper than the RRS plates and have some interesting features, so I decided to do a short report. With the RRS plate, you can order a version that has a… [Read More]
Fuji 250/4 defocusing behavior
This is a continuation of a series of posts on the Fuji GFX 50S. You should be able to find all the posts about that camera in the Category List on the right sidebar, below the Articles widget. There’s a drop-down menu there that you can use to get to all the posts in this series;… [Read More]
Mitakon Zhongyi Speedmaster 50mm f/0.95 OOF PSFs — part 2
Yesterday, I published a post showing unusual behavior of out of focus point spread functions (OOF PSFs) using the Mitakon Zhongyi Speedmaster 50mm f/0.95 on a Sony a7RIII. In a PM, Brandon Dube had some interesting things to say about the effect. I don’t know why it happens. It could be genuine apodization caused by poor… [Read More]
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