Pentax HD PENTAX-D FA 15-30mm F2.8 ED SDM WR vs Sigma 17-70mm f/2.8-4 DC Macro OS HSM

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

Pentax

HD PENTAX-D FA 15-30mm F2.8 ED SDM WR

Sigma

17-70mm f/2.8-4 DC Macro OS HSM

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Verdict at a glance

Pentax HD PENTAX-D FA 15-30mm F2.8 ED SDM WR goes wider (15mm vs 17mm).
Sigma 17-70mm f/2.8-4 DC Macro OS HSM reaches further (70mm vs 30mm).

Specification comparison
Spec	HD PENTAX-D FA 15-30mm F2.8 ED SDM WR	17-70mm f/2.8-4 DC Macro OS HSM
Brand	Pentax	Sigma
Mount	Pentax K	Pentax K
Type	Wide Zoom	Macro
Focal length	15-30mm (wider)	17-70mm
Max aperture	f/2.8	f/2.8
Weight g	1040	n/a
Length mm	144.0	n/a
Diameter mm	99.0	n/a
Min focus m	0.28	n/a

Pentax HD PENTAX-D FA 15-30mm F2.8 ED SDM WR

A full-frame ultra-wide zoom for Pentax with a constant f/2.8 aperture, SDM focusing and weather resistance. It weighs about 1,040 g.

Pros

Constant f/2.8
SDM autofocus
Weather resistant
Close focus 0.28 m

Cons

Bulbous front element
No front filter thread
Heavy at about 1,040 g

Sigma 17-70mm f/2.8-4 DC Macro OS HSM

Sigma 17-70mm f/2.8-4 DC Macro OS HSM: an APS-C macro zoom lens with a 17-70mm focal length and a maximum aperture of f/2.8-4, made for Pentax K mount cameras, with Optical Stabilizer and Hyper Sonic Motor autofocus. It is intended for close-up work with small subjects such as...

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