Pentax smc Pentax-DA* 50-135mm f/2.8 ED IF SDM vs Tamron 17-70mm f/2.8 Di III-A VC RXD

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

Pentax

smc Pentax-DA* 50-135mm f/2.8 ED IF SDM

Tamron

17-70mm f/2.8 Di III-A VC RXD

Verdict at a glance

Tamron 17-70mm f/2.8 Di III-A VC RXD goes wider (17mm vs 50mm).
Pentax smc Pentax-DA* 50-135mm f/2.8 ED IF SDM reaches further (135mm vs 70mm).

Specification comparison
Spec	smc Pentax-DA* 50-135mm f/2.8 ED IF SDM	17-70mm f/2.8 Di III-A VC RXD
Brand	Pentax	Tamron
Mount	Pentax K	Pentax K
Type	Zoom	Zoom
Focal length	50-135mm	17-70mm (wider)
Max aperture	f/2.8	f/2.8
Released	2007	n/a
Blades	9	n/a
Format	aps-c	n/a
Groups	14	n/a
Af motor	SDM	n/a
Elements	18	n/a
Weight g	685	n/a
Filter mm	67	n/a
Diameter mm	77.0	n/a
Max magnification	0.17	n/a

Pentax smc Pentax-DA* 50-135mm f/2.8 ED IF SDM

The Pentax smc Pentax-DA* 50-135mm f/2.8 ED IF SDM is a fast short-telephoto zoom lens covering 50-135mm at f/2.8 for Pentax K mount cameras, with extra-low dispersion glass. A premium weather-resistant "Star" series lens for Pentax K-mount cameras.

Tamron 17-70mm f/2.8 Di III-A VC RXD

This 17-70mm f/2.8 full-frame fast standard zoom lens from Tamron fits Pentax K mount cameras, with Vibration Compensation and quiet motor-driven autofocus. The range covers everything from wide scenes to portraits, so it works as a general-purpose lens.

More comparisons for Pentax smc Pentax-DA* 50-135mm f/2.8 ED IF SDM

Compare other lenses or browse our best-of guides.