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Viltrox 20mm f/2.8 vs Samyang 20mm T1.9 ED AS UMC

Both are Micro Four Thirds prime lenses for full frame. Here is what actually differs.

Pick the Viltrox 20mm f/2.8 if

  • You want autofocus (STM): the Samyang 20mm T1.9 ED AS UMC is manual focus only

Pick the Samyang 20mm T1.9 ED AS UMC if

  • You need 1 stop more light for low light or background blur (f/1.9 vs f/2.8)

Spec differences

8 differences
Specifications that differ between the Viltrox 20mm f/2.8 and the Samyang 20mm T1.9 ED AS UMC
Viltrox 20mm f/2.8 Samyang 20mm T1.9 ED AS UMC
Brand
Viltrox
Samyang
Max aperture
f/2.8
f/1.9 1 stop faster
Length
not listed
113.2 mm
Diameter
not listed
83 mm
Filter thread
52 mm
77 mm
Min focus distance
0.19 m closer
0.2 m
Optical design
10 elements / 8 groups
13 elements / 12 groups
Autofocus motor
STM
Manual focus
5 identical specs hidden: mount, type, format, focal length, image stabilization. Show all
Mount
Micro Four Thirds both
Type
Prime both
Format
Full frame both
Focal length
20mm both
Image stabilization
No both

Our notes

Viltrox 20mm f/2.8

The Viltrox 20mm f/2.8 is a wide-angle prime lens covering 20mm at f/2.8 for Micro Four Thirds mount cameras. The wide view suits landscapes, architecture and environmental shots.

Our notes

Samyang 20mm T1.9 ED AS UMC

More comparisons

Compare other lenses or browse our best-of guides.