Sony FE 20mm F1.8 G vs Sigma 20mm f/1.4 DG HSM Art

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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Sigma

20mm f/1.4 DG HSM Art

f/1.41015 gHSM

Check price Full specs

Pick the Sony FE 20mm F1.8 G if

You want the lighter lens to carry: 642 g lighter (373 g vs 1015 g)
You shoot close-ups: it focuses down to 0.18 m vs 0.28 m
You want bigger close-ups: 0.22× vs 0.14× maximum magnification
You want a compact lens: 84.7 mm vs 155.8 mm long
Our notes say it suits: Landscape and astro, interiors, vlogging

Pick the Sigma 20mm f/1.4 DG HSM Art if

You need ⅔ stop more light for low light or background blur (f/1.4 vs f/1.8)

Spec differences

12 differences

Specifications that differ between the Sony FE 20mm F1.8 G and the Sigma 20mm f/1.4 DG HSM Art
	Sony FE 20mm F1.8 G	Sigma 20mm f/1.4 DG HSM Art
Brand	Sony	Sigma
Max aperture	f/1.8	f/1.4 ⅔ stop faster
Weight	373 g lighter	1015 g
Length	84.7 mm shorter	155.8 mm
Diameter	73.5 mm slimmer	90.7 mm
Filter thread	67 mm	not listed
Min focus distance	0.18 m closer	0.28 m
Max magnification	0.22× larger	0.14×
Aperture blades	not listed	9
Optical design	not listed	15 elements / 11 groups
Autofocus motor	not listed	HSM
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.