Comparison of Sigma 16mm f/1.4 DC DN Contemporary and Sony FE 24mm f/1.4 GM SEL24F14GM

Attribute	Sony FE 24mm f/1.4 GM SEL24F14GM ×	Sigma 16mm f/1.4 DC DN Contemporary ×
Filter Size (mm)	67	67
Notes	Dust and moisture resistant; Included Accessories: ALC-SH15 Hood, Caps and Case.	Lens mounts: Sony E-Mount, Micro Four-Thirds, Canon EF-M. Dust- and splash-proof design; Lens hood (LH716-01) included.
Closest Focus (m)	0.24	0.25
Magnification Ratio (x)	0.17	0.1
Type	Wide Prime	Wide Prime
Length (mm)	92.4	92.3
APS Equivalent	36mm	1.5x: 24mm; 2.0x: 32mm
Diagonal Angle of View (degree)	84.00	83.20
Image Circle	35mm (Full-frame E-Mount)	APS-C
Focal Length (mm)	24.00	16.00
Brand	Sony	Sigma
Name	Sony FE 24mm f/1.4 GM SEL24F14GM	Sigma 16mm f/1.4 DC DN Contemporary
Weight (g)	445	405
Aperture (f)	1.40 - 16.00	1.40 - 16.00
Diaphragm Blades	11	9
Diaphragm Blades Type	rounded	rounded
Lens Construction	13 elements in 10 groups, including 3 ED (Extra-low Dispersion) and 2 XA (eXtreme Aspherical) elements; Nano AR Coating	16 elements in 13 groups, including 3 FLD, 2 SLD and 2 aspherical elements
Diameter (mm)	75.4	72.2
Focus Details	Internal with DDSSM (Direct Drive Supersonic Motor); AF/MF switch; customizable focus hold button	Inner focusing with stepping motor