Sigma Launches 20mm f/1.4 DG HSM Art

If I owned this lens, I would still use it for astro set at f/2.8 where vignetting is better than 2.8 rivals and coma is acceptable. Not what we were hoping for, but usable for astro. Other low light use wide open at f/1.4, and really sharp landscapes at f/5.6 would be a bonus.

But I will not buy because I have most of these uses covered by other lenses.
 
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