The Sigma 24mm f/1.4 Art was delivered late yesterday as promised by B&H. I used FocusTune and LensAlign to micro-adjust the lens to the D810. It took a +11 adjustment.
Today was pleasant enough to do some testing outdoors. Rather than bore you with multiple photos of my backyard (where I usually first test lenses), I'll simply share my first impressions.
[Edit - Sample photo has been deleted because it was taken in haste on a windy day and not representative of what the lens is capable of. I'll leave sample photos and lens testing to those who do it well.]
My initial impression is that this lens lives up to the reputation established by its 35mm and 50mm Art counterparts. It's sharp edge-to-edge, has excellent micro-contrast, and is well corrected. I'm impressed and now have to decide whether to keep both the new Sigma and the Nikon 20mm f/1.8G (which is also as sharp as a razor). Decisions, decisions...