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Tamron 17-50mm f/4 Di III VXD vs 16-50mm f/2.8 A

Both are Sony E zoom lenses. Here is what actually differs.

Pick the 17-50mm f/4 Di III VXD if

  • You want bigger close-ups: 0.26× vs 0.22× maximum magnification
  • You care about the shape of out-of-focus highlights: 9 aperture blades vs 7

Pick the 16-50mm f/2.8 A if

  • You need 1 stop more light for low light or background blur (f/2.8 vs f/4)
  • You want the lighter lens to carry: 155 g lighter (305 g vs 460 g)
  • You want a wider view: 16mm vs 17mm at the wide end
  • You shoot close-ups: it focuses down to 0.15 m vs 0.19 m
  • You want a compact lens: 79.6 mm vs 114.4 mm long

Spec differences

13 differences
Specifications that differ between the Tamron 17-50mm f/4 Di III VXD and the Tamron 16-50mm f/2.8 A
17-50mm f/4 Di III VXD 16-50mm f/2.8 A
Format
Full frame
not listed
Focal length
17-50mm
16-50mm
Max aperture
f/4
f/2.8 1 stop faster
Weight
460 g
305 g lighter
Length
114.4 mm
79.6 mm shorter
Diameter
74.8 mm
64.4 mm slimmer
Filter thread
67 mm
55 mm
Min focus distance
0.19 m
0.15 m closer
Max magnification
0.26× larger
0.22×
Aperture blades
9 more blades
7
Optical design
15 elements / 13 groups
14 elements / 10 groups
Autofocus motor
VXD
not listed
Released
2023
2026
5 identical specs hidden: brand, mount, type, image stabilization, weather sealing. Show all
Brand
Tamron both
Mount
Sony E both
Type
Zoom both
Image stabilization
No both
Weather sealing
Yes both

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