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

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

18-270mm F/3.5-6.3 Di II VC PZD

Verdict at a glance

Tamron 18-270mm F/3.5-6.3 Di II VC PZD 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 18-270mm F/3.5-6.3 Di II VC PZD reaches further (270mm vs 85mm).

Specification comparison
Spec	EF-S 17-85mm F4-5.6 IS USM	18-270mm F/3.5-6.3 Di II VC PZD
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	PZD
Elements	17	n/a
Weight g	475.0	n/a
Filter mm	67	62
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Superseded by the 15-85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 18-270mm F/3.5-6.3 Di II VC PZD

A 18-270mm f/3.5-6.3 APS-C superzoom lens, the Tamron 18-270mm F/3.5-6.3 Di II VC PZD is designed for Canon EF-S mount bodies, with Vibration Compensation and quiet motor-driven autofocus. A high-ratio travel zoom covering wide-angle to telephoto in one lens.

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