Tamron SP 15-30mm F/2.8 Di VC USD vs Sigma 18-50mm f/2.8 EX DC

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

Tamron · 2015

SP 15-30mm F/2.8 Di VC USD

f/2.81100 gUSD

Check price Full specs

Sigma

Pick the Tamron SP 15-30mm F/2.8 Di VC USD if

You want a wider view: 15mm vs 18mm at the wide 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 need more reach: 50mm vs 30mm at the long end

Spec differences

12 differences

Specifications that differ between the Tamron SP 15-30mm F/2.8 Di VC USD and the Sigma 18-50mm f/2.8 EX DC
	Tamron SP 15-30mm F/2.8 Di VC USD	Sigma 18-50mm f/2.8 EX DC
Brand	Tamron	Sigma
Type	Wide Zoom	Zoom
Format	Full frame	not listed
Focal length	15-30mm	18-50mm
Weight	1100 g	not listed
Diameter	98.4 mm	not listed
Filter thread	not listed	67 mm
Aperture blades	9 more blades	7
Optical design	18 elements / 13 groups	15 elements / 13 groups
Autofocus motor	USD	not listed
Image stabilization	Yes stabilized	No
Released	2015	not listed

4 identical specs hidden: mount, max aperture, min focus distance, max magnification. Show all

Mount: Canon EF both
Max aperture: f/2.8 both
Min focus distance: 0.28 m both
Max magnification: 0.2× both

Our notes

Tamron SP 15-30mm F/2.8 Di VC USD

The Tamron SP 15-30mm F/2.8 Di VC USD is a full-frame fast wide-angle zoom lens covering 15-30mm at f/2.8 for Canon EF mount cameras, from the Tamron SP series with Vibration Compensation. It covers wide angles for landscapes, interiors and architecture.

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.