Sigma 24-70mm f/2.8 DG OS HSM Art review
The Sigma fares excellently well in the frame centre and on its edge but only at the shorter focal lengths, doing it at the expense of the edges of the frame at 70 mm. It deals well with chromatic aberrations but the spherical variety remains a problem.
Solid casing designed for high rigidity,, Excellent image quality in the frame centre,, Good image quality on the edge of the APS-C,, Lack of problems with longitudinal chromatic aberration,, Sensible coma correction,, Low vignetting on the APS-C/DX,, Silent, quick and accurate autofocus,, Efficient...
Resolution on the edge of the frame at the 70 mm focal length should have been better,, Noticeable problems with spherical aberration,, Weak performance against bright light,, A bit too high astigmatism level,, Significant vignetting on full frame,, Noticeable distortion of moustache style on the...