The particulars:
- Edelkrone Tripod X Pro
- Arca Swiss C1
- Manual exposure
- EFCS
- ISO 64
- Delay set to 5 seconds
- Six shots per f-stop
- Target centered
- Stops: f/0.95, f/1.4, f/2, f/2.8, f/4, f/5.6, f/8
- Shutter speeds: 1/1250, 1/500, 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
Overall image:
![](https://blog.kasson.com/wp-content/uploads/2024/07/Z709056-2.jpg)
A series of 250% magnification crops:
Quite a bit of illumination falloff in the corner wide open, but the lens is still resolving more detail than the sensor can accurately record.
Pretty impressive corner performance for f/1.4.
Now it’s really crisp.
A tad sharper at f/2.8.
Maybe a bit sharper at f/4.
About the same.
Diffraction takes its toll.
Heavily diffracted.
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