Hi,
I am looking at aliasing on my P45+ and stopping down to f/11 doesn't help. At f/22 it goes away completely.
It depends a bit on what aliasing means to you. But as a general rule, if the lens has a decent amount of MTF at the pixel size you will get aliasing. The question is merely if it matters. It doesn't show up in landscape shooting that much. I also don't know if they would be visible in print. Just converting to JPEG reduces some artefacts, as it smears colour.
The kind of aliasing you will see are:
Broken hair, strains and wires - nothing to do about, it is the nature of things
Fake detail, detail that aliasing invented (image on top P45+, image below Alpha 77 (80 resp 85 mm lens at 4 m), this pair of images indicates that small pixels possibly with OLP filtering really help. P45+ has 6.8 my pixels and Alpha 77 has 3.9 my pixels.
Color aliasing - thin structures shift in color
Moiré color or monochrome pattern - can be reduced
This illustrates the effect of small apertures:
Best regards
Erik
SCHNEIDER 80mm f/2.8 taken at f/11