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Pentax smc Pentax-DA 18-55mm f/3.5-5.6 AL vs Sigma 12-24mm f/4 DG HSM Art

Both are Pentax K lenses. Here is what actually differs.

Pick the Pentax smc Pentax-DA 18-55mm f/3.5-5.6 AL if

  • You need ⅓ stop more light for low light or background blur (f/3.5 vs f/4)
  • You need more reach: 55mm vs 24mm at the long end
  • You want bigger close-ups: 0.34× vs 0.2× maximum magnification
  • You want a compact lens: 67.5 mm vs 131.5 mm long

Pick the Sigma 12-24mm f/4 DG HSM Art if

  • You want a wider view: 12mm vs 18mm at the wide end
  • You shoot full frame: the Pentax smc Pentax-DA 18-55mm f/3.5-5.6 AL is made for APS-C
  • You care about the shape of out-of-focus highlights: 9 aperture blades vs 6

Spec differences

15 differences
Specifications that differ between the Pentax smc Pentax-DA 18-55mm f/3.5-5.6 AL and the Sigma 12-24mm f/4 DG HSM Art
Pentax smc Pentax-DA 18-55mm f/3.5-5.6 AL Sigma 12-24mm f/4 DG HSM Art
Brand
Pentax
Sigma
Type
Zoom
Wide Zoom
Format
APS-C
Full frame
Focal length
18-55mm
12-24mm
Max aperture
f/3.5 ⅓ stop faster
f/4
Weight
220 g
not listed
Length
67.5 mm shorter
131.5 mm
Diameter
68 mm slimmer
102 mm
Filter thread
52 mm
not listed
Min focus distance
0.25 m
0.24 m closer
Max magnification
0.34× larger
0.2×
Aperture blades
6
9 more blades
Optical design
11 elements / 8 groups
16 elements / 11 groups
Autofocus motor
not listed
HSM
Released
2008
not listed
2 identical specs hidden: mount, image stabilization. Show all
Mount
Pentax K both
Image stabilization
No both

Our notes

Pentax smc Pentax-DA 18-55mm f/3.5-5.6 AL

A 18-55mm f/3.5-5.6 standard zoom lens, the Pentax smc Pentax-DA 18-55mm f/3.5-5.6 AL is designed for Pentax K mount bodies. A popular general-purpose zoom for Pentax APS-C cameras.

Our notes

Sigma 12-24mm f/4 DG HSM Art

The Sigma 12-24mm f/4 DG HSM Art is a full-frame wide-angle zoom lens covering 12-24mm at f/4 for Pentax K mount cameras, from the Sigma Art line with Hyper Sonic Motor autofocus. It covers wide angles for landscapes, interiors and architecture.

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