Sony Carl Zeiss Vario-Sonnar T* 16-35mm f/2.8 ZA SSM II (SAL1635Z2) vs Sigma 17-50mm f/2.8 EX DC OS HSM

Side-by-side comparison from our catalogue data. Better values are highlighted only where a clear difference exists.

Sony

Carl Zeiss Vario-Sonnar T* 16-35mm f/2.8 ZA SSM II (SAL1635Z2)

Sigma

17-50mm f/2.8 EX DC OS HSM

Verdict at a glance

Sigma 17-50mm f/2.8 EX DC OS HSM is lighter by 308g.
Sony Carl Zeiss Vario-Sonnar T* 16-35mm f/2.8 ZA SSM II (SAL1635Z2) goes wider (16mm vs 17mm).
Sigma 17-50mm f/2.8 EX DC OS HSM reaches further (50mm vs 35mm).

Specification comparison
Spec	Carl Zeiss Vario-Sonnar T* 16-35mm f/2.8 ZA SSM II (SAL1635Z2)	17-50mm f/2.8 EX DC OS HSM
Brand	Sony	Sigma
Mount	Sony A	Sony A
Type	Wide Zoom	Zoom
Focal length	16-35mm (wider)	17-50mm
Max aperture	f/2.8	f/2.8
Released	2015	n/a
Blades	9	7
Format	full-frame	aps-c
Groups	13	13
Af motor	SSM	HSM
Elements	17	17
Weight g	873	565 (lighter)
Filter mm	77	77
Length mm	114.0	91.8
Min focus m	0.28	0.28
Max magnification	0.24	0.2
Stabilized	n/a	Yes
Diameter mm	n/a	83.5

Sony Carl Zeiss Vario-Sonnar T* 16-35mm f/2.8 ZA SSM II (SAL1635Z2)

The second version of Sony's Zeiss wide zoom for A-mount, with a constant f/2.8 aperture and SSM focusing. It weighs about 873 g and takes 77mm filters.

Pros

Constant f/2.8 aperture
SSM autofocus
Revised optics over the first version
Close focus of 0.28 m

Cons

Heavy at about 873 g
No stabilization (camera-based only)

Sigma 17-50mm f/2.8 EX DC OS HSM

This 17-50mm f/2.8 APS-C fast standard zoom lens from Sigma fits Sony A mount cameras, with Optical Stabilizer and Hyper Sonic Motor autofocus. A bright standard zoom for APS-C cameras with a constant f/2.8 aperture.

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