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Sigma 20mm F2 DG DN | Contemporary 022 vs Tamron E 20mm F2.8 F050

Both are Sony E prime lenses for full frame. Here is what actually differs.

Pick the Sigma 20mm F2 DG DN | Contemporary 022 if

  • You need 1 stop more light for low light or background blur (f/2 vs f/2.8)
  • You shoot video: Stepping motor autofocus is smooth and quiet (the Tamron E 20mm F2.8 F050 uses OSD)
  • You care about the shape of out-of-focus highlights: 9 aperture blades vs 7
  • You prefer a newer design: released 2022 vs 2020
  • Our notes say it suits: Landscape and astro, street and travel, interiors

Pick the Tamron E 20mm F2.8 F050 if

  • You want the lighter lens to carry: 150 g lighter (220 g vs 370 g)
  • You shoot close-ups: it focuses down to 0.11 m vs 0.22 m
  • You want bigger close-ups: 0.5× vs 0.15× maximum magnification

Spec differences

13 differences
Specifications that differ between the Sigma 20mm F2 DG DN | Contemporary 022 and the Tamron E 20mm F2.8 F050
Sigma 20mm F2 DG DN | Contemporary 022 Tamron E 20mm F2.8 F050
Brand
Sigma
Tamron
Max aperture
f/2 1 stop faster
f/2.8
Weight
370 g
220 g lighter
Length
74.4 mm
64 mm shorter
Diameter
70 mm slimmer
73 mm
Filter thread
62 mm
67 mm
Min focus distance
0.22 m
0.11 m closer
Max magnification
0.15×
0.5× larger
Aperture blades
9 more blades
7
Optical design
13 elements / 11 groups
10 elements / 9 groups
Autofocus motor
Stepping motor
OSD
Weather sealing
not listed
Yes
Released
2022
2020
5 identical specs hidden: mount, type, format, focal length, image stabilization. Show all
Mount
Sony E both
Type
Prime both
Format
Full frame both
Focal length
20mm both
Image stabilization
No both

Our notes

Sigma 20mm F2 DG DN | Contemporary 022

A compact wide-angle prime for full-frame mirrorless in Sigma's I series, with a metal body and aperture ring. It offers an f/2 aperture.

Pros

  • Metal construction
  • Aperture ring
  • Compact at about 370 g

Cons

  • f/2 is slower than f/1.4 options
  • Some vignetting wide open

Our notes

Tamron E 20mm F2.8 F050

This 20mm f/2.8 wide-angle prime lens from Tamron fits Sony E mount cameras. The wide view suits landscapes, architecture and environmental shots.

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