[Klaus]

https://www.samyanglens.com/en/product/product-view.php?seq=531

Seems to be the AF variant of the manual focus 12mm f/2

Odd MTF curve - especially for a lens targeting Astro. It seems to have quite some astigmatism at the corners.

[Rover]

Have you tested the MF version? Can't seem to find a review here.

[Brightcolours]

https://www.samyanglens.com/en/product/product-view.php?seq=531

Seems to be the AF variant of the manual focus 12mm f/2

Odd MTF curve - especially for a lens targeting Astro. It seems to have quite some astigmatism at the corners.

I think the MTF is just a bit more realistic than the Sony MTFs, and the astigmatism probably is pretty good. I thought coma actually is the big fiend of astro?

Coma and astigmatism are very reasonable, according to LensTip:
https://www.lenstip.com/404.7-Lens_review-Samyang_12_mm_f_2.0_NCS_CS_Coma__astigmatism_and_bokeh.html

People do seem to appreciate it in the astro field.
https://www.alexroddie.com/2019/09/ode-to-the-samyang-12mm-f-2-wide-angle-lens.html
https://i.redd.it/r6ywc0hgrpu41.jpg

[thxbb12]

From the various reviews I read elsewhere it seems to be pretty good optically.
This is a welcome addition in a compact form factor.

I wonder when Samyang is going to release some of their AF lenses for X mount. IIRC Fuji opened their AF protocol to 3rd parties.

[giulio]

From the samples it should have a 7 blades diaphram, much much better than the 6 one in the manual focus version.