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Viltrox AF 20mm f/2.8 Air vs Sigma 20mm f/2 DG DN Contemporary

Both are Leica L prime lenses for full frame. Here is what actually differs.

Pick the Viltrox AF 20mm f/2.8 Air if

  • You want the lighter lens to carry: 211 g lighter (159 g vs 370 g)
  • You shoot close-ups: it focuses down to 0.19 m vs 0.22 m
  • You want bigger close-ups: 0.17× vs 0.15× maximum magnification
  • You want a compact lens: 52.3 mm vs 72.4 mm long

Pick the Sigma 20mm f/2 DG DN Contemporary if

  • You need 1 stop more light for low light or background blur (f/2 vs f/2.8)
  • You care about the shape of out-of-focus highlights: 9 aperture blades vs 7

Spec differences

12 differences
Specifications that differ between the Viltrox AF 20mm f/2.8 Air and the Sigma 20mm f/2 DG DN Contemporary
Viltrox AF 20mm f/2.8 Air Sigma 20mm f/2 DG DN Contemporary
Brand
Viltrox
Sigma
Max aperture
f/2.8
f/2 1 stop faster
Weight
159 g lighter
370 g
Length
52.3 mm shorter
72.4 mm
Diameter
64 mm slimmer
70 mm
Filter thread
52 mm
62 mm
Min focus distance
0.19 m closer
0.22 m
Max magnification
0.17× larger
0.15×
Aperture blades
7
9 more blades
Optical design
10 elements / 8 groups
13 elements / 11 groups
Autofocus motor
STM
not listed
Released
not listed
2022
5 identical specs hidden: mount, type, format, focal length, image stabilization. Show all
Mount
Leica L both
Type
Prime both
Format
Full frame both
Focal length
20mm both
Image stabilization
No both

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