Sony FE 50mm F1.2 GM vs Sigma 50mm f/1.4 CL DG Contemporary

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

Sony · 2021

FE 50mm F1.2 GM

f/1.2778 g

Check price Full specs

Sigma

50mm f/1.4 CL DG Contemporary

f/1.4375 gLinear motor

Full specs

Pick the Sony FE 50mm F1.2 GM if

You need ½ stop more light for low light or background blur (f/1.2 vs f/1.4)
You shoot close-ups: it focuses down to 0.4 m vs 0.45 m
You want bigger close-ups: 0.17× vs 0.15× maximum magnification
Our notes say it suits: Portraits, low-light shooting, subject isolation

Pick the Sigma 50mm f/1.4 CL DG Contemporary if

You want the lighter lens to carry: 403 g lighter (375 g vs 778 g)
You want a compact lens: 56 mm vs 109.2 mm long

Spec differences

13 differences

Specifications that differ between the Sony FE 50mm F1.2 GM and the Sigma 50mm f/1.4 CL DG Contemporary
	Sony FE 50mm F1.2 GM	Sigma 50mm f/1.4 CL DG Contemporary
Brand	Sony	Sigma
Max aperture	f/1.2 ½ stop faster	f/1.4
Weight	778 g	375 g lighter
Length	109.2 mm	56 mm shorter
Diameter	87 mm	64.7 mm slimmer
Filter thread	72 mm	52 mm
Min focus distance	0.4 m closer	0.45 m
Max magnification	0.17× larger	0.15×
Aperture blades	not listed	14
Optical design	not listed	9 elements / 6 groups
Autofocus motor	not listed	Linear motor
Weather sealing	not listed	Yes
Released	2021	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: 50mm both
Image stabilization: No both

Our notes

Sony FE 50mm F1.2 GM

A very bright 50mm prime for full-frame E-mount with an f/1.2 aperture. It targets portrait and low-light shooters who want strong subject separation.