Comparison of Nikon Z 14-30mm f/4 S Nikkor and Tamron 17-35mm f/2.8-4 Di OSD (Model A037)

Attribute	Nikon Z 14-30mm f/4 S Nikkor ×	Tamron 17-35mm f/2.8-4 Di OSD (Model A037) ×
Filter Size (mm)	82	77
Notes	For Nikon Z-mount; Dust- and drip-resistant.	Available mounts: Canon EF, Nikon F; Moisture-resistant construction; Includes petal type lens hood.
Closest Focus (m)	0.28	0.28
Magnification Ratio (x)	0.16	0.2
Diameter (mm)	89	83.2
Type	Wide Zoom	Wide Zoom
APS Equivalent	21 - 45mm	-
Diagonal Angle of View (degree)	72.00 - 114.00	63.40 - 103.70
Image Circle	35mm (Z Mount)	Image Circle
Focal Length (mm)	14.00 - 30.00	17.00 - 35.00
Brand	Nikon	Tamron
Name	Nikon Z 14-30mm f/4 S Nikkor	Tamron 17-35mm f/2.8-4 Di OSD (Model A037)
Weight (g)	485	459
Aperture (f)	4.00 - 22.00	2.80 - 22.00
Diaphragm Blades	7	7
Diaphragm Blades Type	rounded	circular
Lens Construction	14 elements in 12 groups, including 4 ED and 4 aspherical elements; Nano Crystal Coat; Flourine coating on front element surface	15 elements in 10 groups, including 4 LD (Low Dispersion) and 2 GM (Glass Molded) aspherical elements BBAR (Broad-Band Anti-Reflection) coating
Zoom System	Rotary	Rotary
Length (mm)	85	91.4
35mm Equivalent	-	1.5x: 25.5 - 52.5mm; 1.6x: 27.2 - 56mm
Focus Details	Internal focusing with stepper motor (STM); A/M switch	Internal via OSD (Optimized Silent Drive); AF/MF switch