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Pentax HD Pentax D FA 24-70mm F2.8 ED SDM WR vs Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF)

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

Verdict at a glance

  • Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF) goes wider (17mm vs 24mm).
  • Pentax HD Pentax D FA 24-70mm F2.8 ED SDM WR reaches further (70mm vs 50mm).
Specification comparison
Spec HD Pentax D FA 24-70mm F2.8 ED SDM WR SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF)
Brand Pentax Tamron
Mount Pentax K Pentax K
Type Zoom Zoom
Focal length 24-70mm 17-50mm (wider)
Max aperture f/2.8 f/2.8
Weight g 787 n/a
Filter mm 82 67
Length mm 110.0 n/a
Diameter mm 89.0 n/a
Min focus m 0.38 0.27 (closer focusing)
Format n/a aps-c

Pentax HD Pentax D FA 24-70mm F2.8 ED SDM WR

An f/2.8 standard zoom for Pentax full-frame with weather resistance. It uses SDM and HD coating.

Pros

  • Constant f/2.8
  • Weather-resistant
  • HD coating

Cons

  • Heavy
  • No stabilization in lens

Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF)

A popular APS-C standard zoom with a constant f/2.8 aperture, much used on Pentax bodies with in-body stabilization. It has a 67mm filter thread and a minimum focus distance of 0.27 m.

Pros

  • Constant f/2.8
  • Compact 67mm filter size
  • Constant aperture with in-body stabilization support
  • Works with Pentax in-body stabilization

Cons

  • APS-C only
  • No weather sealing
  • Plastic build

More comparisons for Pentax HD Pentax D FA 24-70mm F2.8 ED SDM WR

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