Tamron SP AF 24-70mm F/2.8 Di VC USD vs Sigma 18-50mm f/2.8 EX DC

Both are Canon EF zoom lenses. Here is what actually differs.

Tamron · 2012

Pick the Tamron SP AF 24-70mm F/2.8 Di VC USD if

You need more reach: 70mm vs 50mm at the long end
You shoot handheld in dim light or video: it has optical image stabilization and the Sigma 18-50mm f/2.8 EX DC does not
You care about the shape of out-of-focus highlights: 9 aperture blades vs 7

Pick the Sigma 18-50mm f/2.8 EX DC if

You want a wider view: 18mm vs 24mm at the wide end
You shoot close-ups: it focuses down to 0.28 m vs 0.38 m

Spec differences

12 differences

Specifications that differ between the Tamron SP AF 24-70mm F/2.8 Di VC USD and the Sigma 18-50mm f/2.8 EX DC
	Tamron SP AF 24-70mm F/2.8 Di VC USD	Sigma 18-50mm f/2.8 EX DC
Brand	Tamron	Sigma
Format	Full frame	not listed
Focal length	24-70mm	18-50mm
Weight	825 g	not listed
Diameter	88.2 mm	not listed
Filter thread	82 mm	67 mm
Min focus distance	0.38 m	0.28 m closer
Aperture blades	9 more blades	7
Optical design	17 elements / 12 groups	15 elements / 13 groups
Autofocus motor	USD	not listed
Image stabilization	Yes stabilized	No
Released	2012	not listed

4 identical specs hidden: mount, type, max aperture, max magnification. Show all

Mount: Canon EF both
Type: Zoom both
Max aperture: f/2.8 both
Max magnification: 0.2× both

Our notes

Tamron SP AF 24-70mm F/2.8 Di VC USD

This 24-70mm f/2.8 full-frame fast standard zoom lens from Tamron fits Canon EF mount cameras, from the Tamron SP series with Vibration Compensation. The range covers everything from wide scenes to portraits, so it works as a general-purpose lens.

Our notes

Sigma 18-50mm f/2.8 EX DC

A 18-50mm f/2.8 APS-C fast standard zoom lens, the Sigma 18-50mm f/2.8 EX DC is designed for Canon EF mount bodies. The range covers everything from wide scenes to portraits, so it works as a general-purpose lens.