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]
Archives for 2018
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]
Fuji 250/4 AF-S, AF-C static accuracy
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
I did a brief report on the Mitakon Zhongyi Speedmaster 50 mm f/0.95 lens a while back. I noted that the sensor in the camera I used, the Sony a7RII, couldn’t make use of all the light the lens gathered. In one of the DPR fora, a question arose as to whether or not that… [Read More]
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