This is a continuation of the development of a simple, relatively foolproof, astigmatism, field curvature, and field tilt test for lens screening. The first post is here. In the previous post of this series, I simulated the “pillows” that appeared in the Siemens Star images made with the Fuji GFX 50S and the Fuji 110/2… [Read More]
Search Results for: star eater
Sony a9 eats stars
This is the fourth in a series of posts on the Sony a9. The series starts here. I’ve been asked to look into the digital lowpass filtering in the Sony a9 as a function of exposure time, to see it it has the same “star-eater” filtering beginning as 4 second exposures that was introduced to… [Read More]
Sony a7RIV EDR in continuous, compressed mode
This is one in a series of posts on the Sony alpha 7 R Mark IV (aka a7RIV). 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… [Read More]
a7III long-exposure spatial filtering
This is a continuation of a series of posts on the Sony a7III. 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; just… [Read More]
Sony a7RIII raw spatial processing
This is a continuation of a series of posts on the Sony a7RIII. 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. You… [Read More]
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