Comparison of Nikon Z 14-30mm f/4 S Nikkor and Sigma 10-20mm f/4-5.6 EX DC HSM

Attribute	Nikon Z 14-30mm f/4 S Nikkor ×	Sigma 10-20mm f/4-5.6 EX DC HSM ×
Notes	For Nikon Z-mount; Dust- and drip-resistant.	Available AF mounts: Sigma, Canon, Nikon, Four-Thirds, Pentax, Sony
Magnification Ratio (x)	0.16	0.15
Filter Size (mm)	82	77
Length (mm)	85	81
Closest Focus (m)	0.28	0.24
Diagonal Angle of View (degree)	72.00 - 114.00	63.80 - 102.40
Focus Details	Internal focusing with stepper motor (STM); A/M switch	Internal with HSM
Focal Length (mm)	14.00 - 30.00	10.00 - 20.00
APS Equivalent	21 - 45mm	1.5x: 15 - 30mm; 1.6x: 16 - 32mm; 2.0x: 20 - 40mm
Brand	Nikon	Sigma
Image Circle	35mm (Z Mount)	Image Circle
Name	Nikon Z 14-30mm f/4 S Nikkor	Sigma 10-20mm f/4-5.6 EX DC HSM
Weight (g)	485	470
Type	Wide Zoom	Wide Zoom
Aperture (f)	4.00 - 22.00	4.00 - 22.00
Diaphragm Blades	7	6
Diaphragm Blades Type	rounded	-
Lens Construction	14 elements in 12 groups, including 4 ED and 4 aspherical elements; Nano Crystal Coat; Flourine coating on front element surface	14 elements in 10 groups, including three aspherical elements and three Special Low Dispersion (SLD) lenses
Zoom System	Rotary	Rotary
Diameter (mm)	89	83.5