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Tamron 50-400mm F4.5-6.3 Di III VC VXD vs Sigma 18-50mm F2.8 DC DN | Contemporary 021

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

Tamron 50-400mm F4.5-6.3 Di III VC VXD

Tamron

50-400mm F4.5-6.3 Di III VC VXD

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Sigma 18-50mm F2.8 DC DN | Contemporary 021

Sigma

18-50mm F2.8 DC DN | Contemporary 021

Verdict at a glance

  • Sigma 18-50mm F2.8 DC DN | Contemporary 021 is faster by 1.4 stops (f/2.8 vs f/4.5), letting in more light.
  • Sigma 18-50mm F2.8 DC DN | Contemporary 021 is lighter by 865g.
  • Sigma 18-50mm F2.8 DC DN | Contemporary 021 goes wider (18mm vs 50mm).
  • Tamron 50-400mm F4.5-6.3 Di III VC VXD reaches further (400mm vs 50mm).
Specification comparison
Spec 50-400mm F4.5-6.3 Di III VC VXD 18-50mm F2.8 DC DN | Contemporary 021
Brand Tamron Sigma
Mount Sony E Sony E
Type Zoom Zoom
Focal length 50-400mm 18-50mm (wider)
Max aperture f/4.5 f/2.8 (faster)
Format full-frame aps-c
Af motor VXD Stepping motor
Weight g 1155 290 (lighter)
Filter mm 67 55
Length mm 183.0 76.5
Stabilized Yes n/a
Diameter mm 89.0 61.6
Min focus m 0.25 0.121 (closer focusing)
Blades n/a 7
Groups n/a 10
Elements n/a 13
Max magnification n/a 0.36

Tamron 50-400mm F4.5-6.3 Di III VC VXD

Full-frame telephoto zoom for Sony with VC stabilization covering 50-400mm. It reaches 400mm without the weight of a 150-600mm.

Pros

  • 8x range
  • VC stabilization
  • Lighter than 150-600mm lenses at about 1,155 g

Cons

  • Slow variable aperture
  • Heavier than short telephotos

Sigma 18-50mm F2.8 DC DN | Contemporary 021

A compact f/2.8 standard zoom for APS-C E-mount cameras, weighing about 290 g. It takes 55mm filters and offers a close focus distance of 0.121 m.

Pros

  • Constant f/2.8
  • Very light at 290 g
  • Close focus 0.121 m
  • Stepping motor autofocus

Cons

  • APS-C only
  • No stabilization in the lens
  • Less range than a kit zoom

More comparisons for Tamron 50-400mm F4.5-6.3 Di III VC VXD

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