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Sigma 10-20mm f/3.5 EX DC HSM vs Tamron 18-270mm f/3.5-6.3 Di II VC PZD

Both are Pentax K lenses for APS-C. Here is what actually differs.

Pick the Sigma 10-20mm f/3.5 EX DC HSM if

  • You want a wider view: 10mm vs 18mm at the wide end
  • You shoot close-ups: it focuses down to 0.24 m vs 0.49 m

Pick the Tamron 18-270mm f/3.5-6.3 Di II VC PZD if

  • You need more reach: 270mm vs 20mm at the long end
  • You shoot handheld in dim light or video: it has optical image stabilization and the Sigma 10-20mm f/3.5 EX DC HSM does not

Spec differences

13 differences
Specifications that differ between the Sigma 10-20mm f/3.5 EX DC HSM and the Tamron 18-270mm f/3.5-6.3 Di II VC PZD
Sigma 10-20mm f/3.5 EX DC HSM Tamron 18-270mm f/3.5-6.3 Di II VC PZD
Brand
Sigma
Tamron
Type
Wide Zoom
Superzoom
Focal length
10-20mm
18-270mm
Weight
520 g
not listed
Length
88.2 mm
not listed
Diameter
87.3 mm
not listed
Filter thread
82 mm
62 mm
Min focus distance
0.24 m closer
0.49 m
Max magnification
0.15×
not listed
Aperture blades
7
not listed
Optical design
13 elements / 10 groups
not listed
Autofocus motor
HSM
PZD
Image stabilization
No
Yes stabilized
3 identical specs hidden: mount, format, max aperture. Show all
Mount
Pentax K both
Format
APS-C both
Max aperture
f/3.5 both

Our notes

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.

Our notes

Tamron 18-270mm f/3.5-6.3 Di II VC PZD

Tamron 18-270mm f/3.5-6.3 Di II VC PZD: an APS-C superzoom lens with a 18-270mm focal length and a maximum aperture of f/3.5-6.3, made for Pentax K mount cameras, with Vibration Compensation and quiet motor-driven autofocus. A high-ratio travel zoom covering wide-angle to tele...

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