Nikon 24mm f/1.4G autofocus study published!

Just published in DAP is my study of the Nikon AF-S 24mm f/1.4G autofocus performance on the Nikon D3x and D3s. Multiple controlled tests as well as ad-hoc examples are presented.

Combined with the survey results, it’s abundantly clear that something isn’t right with the 24/1.4G. Could a recall be in the offing? I don’t see any explanation but “defective”.

I am more impressed with optical quality of the 24mm f/1.4G than ever, especially at f/1.4, but the autofocus is best described as useless, at least with my sample, because it cannot be relied upon to deliver the performance of which the optics are capable.