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Pentax smc DA 50-200mm F4-5.6 ED vs Sigma 17-50mm f/2.8 EX DC OS HSM

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

Verdict at a glance

  • Sigma 17-50mm f/2.8 EX DC OS HSM is faster by 1 stop (f/2.8 vs f/4.0), letting in more light.
  • Pentax smc DA 50-200mm F4-5.6 ED is lighter by 293g.
  • Sigma 17-50mm f/2.8 EX DC OS HSM goes wider (17mm vs 50mm).
  • Pentax smc DA 50-200mm F4-5.6 ED reaches further (200mm vs 50mm).
Specification comparison
Spec smc DA 50-200mm F4-5.6 ED 17-50mm f/2.8 EX DC OS HSM
Brand Pentax Sigma
Mount Pentax K Pentax K
Type Zoom Zoom
Focal length 50-200mm 17-50mm (wider)
Max aperture f/4.0 f/2.8 (faster)
Format aps-c aps-c
Weight g 272 (lighter) 565
Filter mm 49 77
Length mm 80.0 91.8
Diameter mm 69.0 83.5
Min focus m 1.1 0.28 (closer focusing)
Blades n/a 7
Groups n/a 13
Af motor n/a HSM
Elements n/a 17
Stabilized n/a Yes
Max magnification n/a 0.2

Pentax smc DA 50-200mm F4-5.6 ED

A 50-200mm f/4-5.6 short-telephoto zoom lens, the Pentax smc DA 50-200mm F4-5.6 ED is designed for Pentax K mount bodies, with extra-low dispersion glass. The range suits portraits and general telephoto work.

Sigma 17-50mm f/2.8 EX DC OS HSM

Sigma 17-50mm f/2.8 EX DC OS HSM: an APS-C fast standard zoom lens with a 17-50mm focal length and a maximum aperture of f/2.8, made for Pentax K mount cameras, with Optical Stabilizer and Hyper Sonic Motor autofocus. A bright standard zoom for APS-C cameras with a constant f/...

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