§ 03 Head to head

Pentax smc DA 18-250 mm f/3.5-6.3 ED AL [IF] vs Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM

Pentax 18–250mm f/3.5-6.3 has a longer reach. Sigma 18–200mm f/3.5-6.3 is 25 g lighter.

The Pentax smc DA 18-250 mm f/3.5-6.3 ED AL [IF] is an 18–250mm f/3.5-6.3 zoom, and the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM is an 18–200mm f/3.5-6.3 zoom. On paper the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM comes out ahead, 3 advantages to 1, but which one suits you depends on what you shoot.

01

Key differences

From manufacturer specifications

Why is the Pentax smc DA 18-250 mm f/3.5-6.3 ED AL [IF] better than the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM?

  • Longer reach (250mm vs 200mm)

Why is the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM better than the Pentax smc DA 18-250 mm f/3.5-6.3 ED AL [IF]?

  • 25 g lighter (430 g vs 455 g)
  • Focuses 6 cm closer (0.39 m vs 0.45 m)
  • Newer design (2014 vs 2007)
02

Which should you buy?

By use
  • landscape For landscape photography, the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM has the edge: it is 25 g lighter to carry.
  • architecture For architecture, the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM has the edge: it is 25 g lighter to carry.
  • macro For macro photography, the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM has the edge: it focuses closer, down to 0.39 m.
03

Specification

15 rows · better value flagged ◆
SpecificationPentax smc DA 18-250 mm f/3.5-6.3 ED AL [IF]Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM
Focal length18–250mm 18–200mm
Maximum aperturef/3.5-6.3 f/3.5-6.3
Minimum aperturef/22-45 f/22
Lens typeZoom lens Zoom lens
FormatAPS-C APS-C
Weight455 g (16.05 oz) 430 g (15.17 oz) ◆
Dimensions75 x 85.5 mm 70.7 x 86 mm
Minimum focusing distance0.45 m (17.72 inches) 0.39 m (15.35 inches) ◆
Image stabilization—Yes
Aperture ringNo No
Aperture blades7 7
Optical construction16 elements in 13 groups 16 elements / 13 groups
Filter size62 mm 62 mm
Lens mountPentax K Nikon F, Sony A, Pentax K, Canon EF-S
Released2007 2014
04

Size

Drawn to relative scale
  • A · Pentax
  • B · Sigma
  • 85.5 × 75 mm
  • 86 × 70.7 mm

The Pentax smc DA 18-250 mm f/3.5-6.3 ED AL [IF] is 25 g heavier than the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM.

05

Sample frames

Shot on each lens

Pentax smc DA 18-250 mm f/3.5-6.3 ED AL [IF]

Ford Mustang II overlooking Torquay harbour
Ford Mustang II overlooking Torquay harbour by w126uk / Duncan Joint
Flamingo
Flamingo by Miquel Gomis
Pool in the barn
Pool in the barn by w126uk / Duncan Joint
Harley Davidson Christmas Bauble
Harley Davidson Christmas Bauble by w126uk / Duncan Joint

Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM

IMGP0012
IMGP0012 by ritomo
IMGP0972-強化-NR
IMGP0972-強化-NR by ritomo
IMGP0964-強化-NR
IMGP0964-強化-NR by ritomo
IMGP0883-強化-NR
IMGP0883-強化-NR by ritomo
06

Video reviews

3 on YouTube
Video thumbnail for Pentax smc DA 18-250 mm f/3.5-6.3 ED AL [IF] review 1
Video thumbnail for Pentax smc DA 18-250 mm f/3.5-6.3 ED AL [IF] review 2
Video thumbnail for Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM review 1
07

Questions

Which is lighter, the Pentax smc DA 18-250 mm f/3.5-6.3 ED AL [IF] or the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM?
The Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM weighs 430 g, 25 g less than the Pentax smc DA 18-250 mm f/3.5-6.3 ED AL [IF] (455 g).
Which focuses closer, the Pentax smc DA 18-250 mm f/3.5-6.3 ED AL [IF] or the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM?
The Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM focuses down to 0.39 m, against 0.45 m for the Pentax smc DA 18-250 mm f/3.5-6.3 ED AL [IF].
Is the Pentax smc DA 18-250 mm f/3.5-6.3 ED AL [IF] or the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM better for landscape photography?
For landscape photography, the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM has the edge: it is 25 g lighter to carry.
Is the Pentax smc DA 18-250 mm f/3.5-6.3 ED AL [IF] or the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM better for architecture?
For architecture, the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM has the edge: it is 25 g lighter to carry.
08

Other comparisons