Sony FE 20mm F1.8 G vs Samyang 20mm T1.9 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 T1.9 ED AS UMC

f/1.9MF

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Pick the Sony FE 20mm F1.8 G if

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 T1.9 ED AS UMC if

Our spec data shows no clear advantage for this lens.

Spec differences

11 differences

Specifications that differ between the Sony FE 20mm F1.8 G and the Samyang 20mm T1.9 ED AS UMC
	Sony FE 20mm F1.8 G	Samyang 20mm T1.9 ED AS UMC
Brand	Sony	Samyang
Max aperture	f/1.8	f/1.9
Weight	373 g	not listed
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

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

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.