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Tamron 20mm F2.8 Di III OSD M1:2 vs Viltrox 20mm f/2.8

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

Pick the Tamron 20mm F2.8 Di III OSD M1:2 if

  • You shoot close-ups: it focuses down to 0.11 m vs 0.19 m
  • You want bigger close-ups: 0.5× vs 0.17× maximum magnification
  • Our notes say it suits: Street, landscape, close-up details

Pick the Viltrox 20mm f/2.8 if

  • You want the lighter lens to carry: 63 g lighter (157 g vs 220 g)
  • You shoot video: STM autofocus is smooth and quiet (the Tamron 20mm F2.8 Di III OSD M1:2 uses OSD)

Spec differences

11 differences
Specifications that differ between the Tamron 20mm F2.8 Di III OSD M1:2 and the Viltrox 20mm f/2.8
Tamron 20mm F2.8 Di III OSD M1:2 Viltrox 20mm f/2.8
Brand
Tamron
Viltrox
Weight
220 g
157 g lighter
Length
64 mm
59.5 mm shorter
Diameter
73 mm
65 mm slimmer
Filter thread
67 mm
52 mm
Min focus distance
0.11 m closer
0.19 m
Max magnification
0.5× larger
0.17×
Optical design
10 elements / 9 groups
10 elements / 8 groups
Autofocus motor
OSD
STM
Weather sealing
Yes
not listed
Released
2020
not listed
7 identical specs hidden: mount, type, format, focal length, max aperture, aperture blades, image stabilization. Show all
Mount
Sony E both
Type
Prime both
Format
Full frame both
Focal length
20mm both
Max aperture
f/2.8 both
Aperture blades
7 both
Image stabilization
No both

Our notes

Tamron 20mm F2.8 Di III OSD M1:2

A small wide-angle prime for Sony full-frame with 1:2 close-up capability. It weighs about 220 g and uses an OSD focus motor.

Pros

  • Compact at about 220 g
  • Close focusing to 1:2
  • 67mm filter thread

Cons

  • f/2.8 is slow for low light
  • No stabilization

Our notes

Viltrox 20mm f/2.8

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

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