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Sigma has published performance data for its 24-35mm f/2 DG HSM Art (pre-order). Check it out below.

I also included an MTF comparison between the f/2 zoom lens and the 24mm and 35mm f/1.4 Art.

Diffraction MTF Charts

Sigma 24-35mm f/2 DG HSM Art: Diffraction MTF Chart

Geometrical MTF Charts

Sigma 24-35mm f/2 DG HSM Art: Geometrical MTF Chart

Distortion

Sigma 24-35mm f/2 DG HSM Art: Distortion

Vignetting

Sigma 24-35mm f/2 DG HSM Art: Vignetting

MTF versus 24mm f/1.4 Art and 35mm f/1.4 Art

Be aware that this is wide open performance, so the 24-35mm Art is at f/2 and the two prime lenses are at f/1.4. Regrettably, Sigma doesn’t provide MTF charts for stopped down apertures.

Moreover, the diffraction MTF chart for the 35mm f/1.4 Art is not available, so what you see below is the “geometrical” one, that shows very slightly higher (better) values.

Sigma 24-35mm f/2 DG HSM Art at 24mm (left) and 35mm (right) — f/2 Sigma 24-35mm f/2 DG HSM Art at 24mm (left) and 35mm (right) — f/2
Sigma 24mm f/1.4 Art (left) and 35mm f/1.4 Art (right) — f/1.4 Sigma 24mm f/1.4 Art (left) and 35mm f/1.4 Art (right) — f/1.4
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