Comparison of Nikon 16-80mm f/2.8-4E ED VR DX AF-S Nikkor and Sigma 17-70mm ƒ/2.8-4 DC Macro OS HSM Contemporary

Attribute	Nikon 16-80mm f/2.8-4E ED VR DX AF-S Nikkor ×	Sigma 17-70mm ƒ/2.8-4 DC Macro OS HSM Contemporary ×
Aperture (f)	2.80 - 32.00	2.80 - 22.00
Filter Size (mm)	72	72
Notes	Image Stabilization (up to 4 stops correction). Included Accessories: Flexible Lens Pouch, Bayonet Lens Hood.	Image Stabilized (up to 4 stops); Available AF Mounts: Canon, Nikon, Sigma, Pentax, Sony; Accessory: lens hood LH780-03.
Closest Focus (m)	0.35	0.22
Magnification Ratio (x)	0.22	0.34
Zoom System	Rotary	Rotary with lock
Type	Standard Zoom	Standard Zoom
APS Equivalent	24 - 120mm	1.5x: 25.5 - 105mm; 1.6x: 27.2 - 112mm
Diaphragm Blades	7	7
Image Circle	APS-C	APS-C
Focal Length (mm)	16.00 - 80.00	17.00 - 70.00
Brand	Nikon	Sigma
Name	Nikon 16-80mm f/2.8-4E ED VR DX AF-S Nikkor	Sigma 17-70mm ƒ/2.8-4 DC Macro OS HSM Contemporary
Weight (g)	480	470
Diaphragm Blades Type	rounded	rounded
Lens Construction	17 elements in 13 groups, with 4 ED and 3 aspherical elements; Nano Crystal Coat, Super Integrated Coating, Fluorine Coating	16 elements in 14 groups, including FLD, SLD, and 3 aspherical elements
Diagonal Angle of View (degree)	20.00 - 83.00	22.90 - 79.70
Length (mm)	85.5	82
Diameter (mm)	80	79
Focus Details	Silent Wave Motor; Internal Focusing with AF/MF switch	Internal, with Hyper-Sonic Motor; AF/MF switch