At any rate, this lens looks great, a vast improvement over the predecessor. I have and love the said predecessor, but it doesn't even come close to being sharp across the frame (APS-H mind you...) until ~oh say~ f/13 or so, and even then it depends on the orientation of the scene (a sign of strong field curvature). I haven't analyzed it formally of course, just had the time (7,5 years and counting) to get used to its quirks. 20 years of lens design haven't passed for nothing...
The price / size is another matter entirely.
I'm not going to upgrade but if Sigma had released a wider prime - say, 12mm - I would've been more willing.
The price / size is another matter entirely.
I'm not going to upgrade but if Sigma had released a wider prime - say, 12mm - I would've been more willing.