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Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF) vs Sigma 50-100mm f/1.8 DC HSM Art

Both are Nikon F zoom lenses for APS-C. Here is what actually differs.

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

  • You want a wider view: 17mm vs 50mm at the wide end
  • You shoot close-ups: it focuses down to 0.27 m vs 0.95 m

Pick the Sigma 50-100mm f/1.8 DC HSM Art if

  • You need 1⅓ stops more light for low light or background blur (f/1.8 vs f/2.8)
  • You need more reach: 100mm vs 50mm at the long end
  • Our notes say it suits: Portraits on APS-C, events and stage, sports in low light

Spec differences

12 differences
Specifications that differ between the Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF) and the Sigma 50-100mm f/1.8 DC HSM Art
Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF) Sigma 50-100mm f/1.8 DC HSM Art
Brand
Tamron
Sigma
Focal length
17-50mm
50-100mm
Max aperture
f/2.8
f/1.8 1⅓ stops faster
Length
not listed
170.7 mm
Diameter
not listed
93.5 mm
Filter thread
67 mm
82 mm
Min focus distance
0.27 m closer
0.95 m
Max magnification
not listed
0.15×
Aperture blades
not listed
9
Optical design
not listed
21 elements / 15 groups
Autofocus motor
not listed
HSM
Released
not listed
2016
4 identical specs hidden: mount, type, format, image stabilization. Show all
Mount
Nikon F both
Type
Zoom both
Format
APS-C both
Image stabilization
No both

Our notes

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

A 17-50mm f/2.8 APS-C fast standard zoom lens, the Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF) is designed for Nikon F mount bodies, from the Tamron SP series with aspherical elements. A bright standard zoom for APS-C DSLRs with a constant f/2.8 aperture.

Our notes

Sigma 50-100mm f/1.8 DC HSM Art

A constant f/1.8 telephoto zoom for APS-C DSLRs that works like a fast 75-150mm prime set. It weighs a lot and takes 82mm filters.

Pros

  • Constant f/1.8 aperture
  • Sharp across the range
  • HSM autofocus
  • Replaces several primes

Cons

  • APS-C only
  • Heavy and large
  • No stabilization

More comparisons

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