Canon EF-S 17-85mm F4-5.6 IS USM vs Tamron AF 18-270mm F/3.5-6.3 Di II VC LD Aspherical

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

Canon

EF-S 17-85mm F4-5.6 IS USM

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Tamron

AF 18-270mm F/3.5-6.3 Di II VC LD Aspherical

Verdict at a glance

Tamron AF 18-270mm F/3.5-6.3 Di II VC LD Aspherical is faster by 0.4 stops (f/3.5 vs f/4.0), letting in more light.
Canon EF-S 17-85mm F4-5.6 IS USM goes wider (17mm vs 18mm).
Tamron AF 18-270mm F/3.5-6.3 Di II VC LD Aspherical reaches further (270mm vs 85mm).

Specification comparison
Spec	EF-S 17-85mm F4-5.6 IS USM	AF 18-270mm F/3.5-6.3 Di II VC LD Aspherical
Brand	Canon	Tamron
Mount	Canon EF-S	Canon EF-S
Type	Zoom	Zoom
Focal length	17-85mm (wider)	18-270mm
Max aperture	f/4.0	f/3.5 (faster)
Released	2004	n/a
Blades	6	n/a
Format	aps-c	aps-c
Groups	12	n/a
Af motor	USM	n/a
Elements	17	n/a
Weight g	475.0	n/a
Filter mm	67	72
Length mm	92.0	n/a
Stabilized	Yes	Yes
Diameter mm	78.5	n/a
Min focus m	0.35 (closer focusing)	0.49
Max magnification	0.2	n/a

Canon EF-S 17-85mm F4-5.6 IS USM

An older stabilized standard zoom for Canon APS-C cameras, wider-ranging than the basic 18-55 kit lens. USM focusing; succeeded by the 15-85.

Pros

Image stabilization
USM focusing
Useful range

Cons

Visible distortion at the wide end
Variable aperture
Superseded by the 15-85

Tamron AF 18-270mm F/3.5-6.3 Di II VC LD Aspherical

The Tamron AF 18-270mm F/3.5-6.3 Di II VC LD Aspherical is an APS-C superzoom lens covering 18-270mm at f/3.5-6.3 for Canon EF-S mount cameras, with Vibration Compensation and aspherical elements. A high-ratio travel zoom covering wide-angle to telephoto in one lens.

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