Comparison of Nikon 18-200mm f/3.5-5.6G IF-ED AF-S DX VR Nikkor and Sigma 18-200mm ƒ/3.5-6.3 DC OS

Attribute	Sigma 18-200mm ƒ/3.5-6.3 DC OS ×	Nikon 18-200mm f/3.5-5.6G IF-ED AF-S DX VR Nikkor ×
Filter Size (mm)	72	72
Notes	Image Stabilization; Available AF mounts: Sigma, Canon, Nikon (HSM); Includes petal-type lens hood.	Image Stabilization; Included Accessories: Bayonet hood (HB-35), Soft lens pouch (CL-1018)
Closest Focus (m)	0.45	0.5
Magnification Ratio (x)	0.26	0.22
Type	Standard Zoom	Standard Zoom
Length (mm)	100	96.5
APS Equivalent	1.5x: 27 - 300mm; 1.6x: 28.8 - 320mm	27 - 300mm
Zoom System	Rotary	Rotary
Image Circle	Image Circle	APS-C
Focal Length (mm)	18.00 - 200.00	18.00 - 200.00
Brand	Sigma	Nikon
Name	Sigma 18-200mm ƒ/3.5-6.3 DC OS	Nikon 18-200mm f/3.5-5.6G IF-ED AF-S DX VR Nikkor
Weight (g)	610	560
Aperture (f)	3.50 - 22.00	3.50 - 36.00
Diaphragm Blades	7	7
Diagonal Angle of View (degree)	7.10 - 69.30	8.00 - 76.00
Lens Construction	18 elements in 13 groups, including 3 SLD and 2 aspherical elements	16 elements in 12 groups, including 3 aspherical and 2 ED elements
Diameter (mm)	79	77
Focus Details	Internal with AF/MF switch	Internal; AF-S "Silent Wave" motor with full-time manual focus override feature