Carmel Valley, California
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I’ve used both for the same subject. Pixel shift is better for most subjects, if your subject and camera are locked down solid. I think that Super Resolution must have been trained in part with a Siemens Star, because it does pretty darned well with that as a target.
Maybe you could post some images. The 24-105mm is a surprisingly good lens and used by a lot of Sony shooters. I have both the 24-70 GM and the 24-105. I had done some testes a year or so ago and it was hard to tell them apart.
Vignetting is quite different between those lenses. If you turn off the raw developer vignetting correction you’ll see what I mean.
Sometimes diffraction is a good thing. It can be an effective way to eliminate visible aliasing. In addition, diffraction blur in small amounts responds well to deconvolution sharpening. Greg, I wouldn’t think twice about using f/11 in this situation.
Blur management is about trading off motion blur, defocus blur, lens aberration blur, and diffraction blur. One size doesn’t fit all.
If lack of sharpness is because of the design of the lens, no. If lack of sharpness is due to improper construction, yes, sometimes.
Here’s the classic reference on the subject: