This is one in a series of posts on the Nikon Z6 and Z7. 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… [Read More]
Search Results for: sony 12-24
Fourier transforms of Sony 12-24 Siemens Star tests
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. Warning: this is a nerdy little post. don’t know how to interpret it myself. Maybe some of you do. If the words Fourier transform mean little to you,… [Read More]
Sony 12-24/4 off axis at 18 & 12 mm
This is a continuation of this post: Off-axis aberration testing — Sony 12-24/4 on a7RII If you got here without reading the previous post, you should go back and do so now. Here is the full frame at 18 mm: Here’s our magnified tight crop of the center, with the same pixel dimensions as before:… [Read More]
Off-axis aberration testing — Sony 12-24/4 on a7RII
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. I’m trying to refine my off-axis test procedures with the idea of getting them posted in a single document and inviting users to try them out. I’m sure… [Read More]
IQ effects of Sony 12-24/4 Lr distortion corrections
This is part 13 of a test of the Sony 12-24 mm f/4 FE lens. The test starts here. Yesterday, I showed you some images that indicated that the new Lightroom lens profile for the Sony 12-24/4 worked quite well. Several people have expressed the opinion that correcting distortion in wide rectilinear lenses in post… [Read More]
- 1
- 2
- 3
- …
- 7
- Next Page »