Pentax HD Pentax-DA 10-17mm F3.5-4.5 ED fisheye vs Sigma 10-20mm f/3.5 EX DC HSM

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

Pentax

HD Pentax-DA 10-17mm F3.5-4.5 ED fisheye

Sigma

10-20mm f/3.5 EX DC HSM

Verdict at a glance

Pentax HD Pentax-DA 10-17mm F3.5-4.5 ED fisheye is lighter by 203g.
Sigma 10-20mm f/3.5 EX DC HSM reaches further (20mm vs 17mm).

Specification comparison
Spec	HD Pentax-DA 10-17mm F3.5-4.5 ED fisheye	10-20mm f/3.5 EX DC HSM
Brand	Pentax	Sigma
Mount	Pentax K	Pentax K
Type	Wide Zoom	Wide Zoom
Focal length	10-17mm	10-20mm
Max aperture	f/3.5	f/3.5
Format	aps-c	aps-c
Weight g	317 (lighter)	520
Length mm	70.0	88.2
Diameter mm	68.0	87.3
Min focus m	0.14 (closer focusing)	0.24
Blades	n/a	7
Groups	n/a	10
Af motor	n/a	HSM
Elements	n/a	13
Filter mm	n/a	82
Max magnification	n/a	0.15

Pentax HD Pentax-DA 10-17mm F3.5-4.5 ED fisheye

A fisheye zoom for Pentax APS-C bodies. It weighs about 317 g and focuses as close as 0.14 m.

Pros

Zoom flexibility
Close focus 0.14 m
HD coating
Compact

Cons

APS-C only
Strong distortion
No front filters

Sigma 10-20mm f/3.5 EX DC HSM

A 10-20mm f/3.5 APS-C wide-angle zoom lens, the Sigma 10-20mm f/3.5 EX DC HSM is designed for Pentax K mount bodies, with Hyper Sonic Motor autofocus. It covers wide angles for landscapes, interiors and architecture.

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