In the previous post, I showed you Siemens star images made with the Nikon 135/1.8 Plena on the Z7 with the star in the center of the frame. In this post, the images comes from the lower left corner.
- Edelkrone Tripod X Pro
- Arca Swiss C1
- Manual exposure
- EFCS
- ISO 64
- Delay set to 2 seconds
- Six shots per f-stop
- Target centered
- Stops: f/1.8, f/2, f/2.8, f/4, f/5.6, f/8, f/11
- Shutter speeds: 1/320, 1/250, 1/125, 1/60, 1/30, 1/15 seconds
- Developed in Lr with default settings except for white balance, and sharpening set to 0
An uncropped image:
Crops, at 250% magnification:
Wide open radial lines have higher resolution than tangential ones.There is aliasing for both kinds on lines.
Not much difference at f/2.
f/2.8 is a little better.
F/4 is very sharp.
So is f/5.6.
Diffraction is costing us a little bit at f/8.
Lots of diffraction at f/11, but still some aliasing.
Very impressive!
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