Comparison of Sigma 15-30mm f/3.5-4.5 EX DG Aspherical and Sony FE 12-24mm f/4 G SEL1224G

Attribute	Sigma 15-30mm f/3.5-4.5 EX DG Aspherical ×	Sony FE 12-24mm f/4 G SEL1224G ×
Notes	Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax	Sony E-mount; Dust and moisture resistant; Fixed petal-shaped lens hood.
Aperture (f)	3.50 - 22.00	4.00 - 22.00
Closest Focus (m)	0.3	0.28
Magnification Ratio (x)	0.17	0.14
Type	Wide Zoom	Wide Zoom
Focus Details	Internal Focus with Dual Focus mechanism	Internal; DDSSM (Direct Drive Super Sonic wave Motor) with Focus Hold button and AF/MF switch
APS Equivalent	1.5x: 22.5 - 45mm; 1.6x: 24 - 48mm	18 - 36mm
Diameter (mm)	87	87
Image Circle	35mm	35mm (Full-frame E-Mount)
Focal Length (mm)	15.00 - 30.00	12.00 - 24.00
Brand	Sigma	Sony
Name	Sigma 15-30mm f/3.5-4.5 EX DG Aspherical	Sony FE 12-24mm f/4 G SEL1224G
Weight (g)	615	565
Diagonal Angle of View (degree)	71.60 - 110.50	84.00 - 122.00
Diaphragm Blades	8	7
Zoom System	Rotary	Rotary
Length (mm)	132.5	117.4
Diaphragm Blades Type	-	circular
Lens Construction	17 elements in 13 groups, including 2 aspherical elements	17 elements in 13 groups, including 4 aspherical, 1 Super ED and 3 ED elements; Nano AR coating