Sony FE 20mm F1.8 G vs Samyang 20mm f/1.8 ED AS UMC

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

Sony · 2020

FE 20mm F1.8 G

f/1.8373 g

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Samyang

20mm f/1.8 ED AS UMC

f/1.8525 gMF

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Pick the Sony FE 20mm F1.8 G if

You want the lighter lens to carry: 152 g lighter (373 g vs 525 g)
You shoot close-ups: it focuses down to 0.18 m vs 0.2 m
You want a compact lens: 84.7 mm vs 114.4 mm long
Our notes say it suits: Landscape and astro, interiors, vlogging

Pick the Samyang 20mm f/1.8 ED AS UMC if

Our spec data shows no clear advantage for this lens.

Spec differences

10 differences

Specifications that differ between the Sony FE 20mm F1.8 G and the Samyang 20mm f/1.8 ED AS UMC
	Sony FE 20mm F1.8 G	Samyang 20mm f/1.8 ED AS UMC
Brand	Sony	Samyang
Weight	373 g lighter	525 g
Length	84.7 mm shorter	114.4 mm
Diameter	73.5 mm slimmer	83 mm
Filter thread	67 mm	77 mm
Min focus distance	0.18 m closer	0.2 m
Max magnification	0.22×	not listed
Optical design	not listed	13 elements / 12 groups
Autofocus motor	not listed	Manual focus
Released	2020	not listed

6 identical specs hidden: mount, type, format, focal length, max aperture, image stabilization. Show all

Mount: Sony E both
Type: Prime both
Format: Full frame both
Focal length: 20mm both
Max aperture: f/1.8 both
Image stabilization: No both

Our notes

Sony FE 20mm F1.8 G

A compact wide-angle prime for full-frame E-mount with an f/1.8 aperture and an aperture ring. It weighs about 373 g and suits landscapes, astro and interiors.