Comparison of Sigma 14mm f/1.8 DG HSM Art and Tamron SP 15-30mm f/2.8 Di VC USD G2 (Model A041)

Attribute	Tamron SP 15-30mm f/2.8 Di VC USD G2 (Model A041) ×	Sigma 14mm f/1.8 DG HSM Art ×
Notes	VC Image Stabilization (4.5 stops); Available AF mounts: Canon EF, Nikon F. Integrated flower-shaped hood.	Available AF Mounts: Sigma SA, Canon EF, L-Mount, Nikon F, Sony E; Compatible with Mount Converter MC-11
Aperture (f)	2.80 - 22.00	1.80 - 16.00
Closest Focus (m)	0.28	0.27
Magnification Ratio (x)	0.2	0.1
Type	Wide Zoom	Wide Prime
Focus Details	Internal focusing; Ultrasonic Silent Drive USD motor with full-time MF mechanism; Dual MPU (Micro-Processing Unit) system	Internal focus; HSM with full-time manual override
APS Equivalent	1.5x: 22.5 - 45mm; 1.6x: 24 - 48mm	1.5x: 21mm; 1.6x: 22.4mm
Diameter (mm)	98.4	95.4
Image Circle	Image Circle	35mm
Focal Length (mm)	15.00 - 30.00	14.00
Brand	Tamron	Sigma
Name	Tamron SP 15-30mm f/2.8 Di VC USD G2 (Model A041)	Sigma 14mm f/1.8 DG HSM Art
Weight (g)	1110	1170
Diaphragm Blades Type	circular	rounded
Diaphragm Blades	9	9
Diagonal Angle of View (degree)	71.60 - 110.50	114.20
Length (mm)	145	126
Zoom System	Rotating	-
Lens Construction	18 elements in 13 groups, including 2 molded glass aspherical elements, 1 XGM (eXpanded Glass Molded) aspherical element and 3 LD elements	16 elements in 11 groups, including 4 SLD and 3 FLD elements