Comparison of Nikon 18-300mm f/3.5-6.3G ED AF-S DX VR Nikkor and Sigma 18-300mm f/3.5-6.3 DC Macro OS HSM Contemporary

Attribute	Sigma 18-300mm f/3.5-6.3 DC Macro OS HSM Contemporary ×	Nikon 18-300mm f/3.5-6.3G ED AF-S DX VR Nikkor ×
Aperture (f)	3.50 - 22.00	3.50 - 40.00
Filter Size (mm)	72	67
Notes	Image Stabilization; Available OS AF mounts: Canon EF, Nikon F, Sigma SA; Non-OS AF mounts: Sony A, Pentax K	VR (Vibration Reduction) minimizes camera shake by offering a shutter speed equivalent to 4 stops faster
Closest Focus (m)	0.38	0.48
Magnification Ratio (x)	0.33	0.32
Zoom System	Rotary	Rotary
Type	Standard Zoom	Standard Zoom
APS Equivalent	1.5x: 27 - 450mm; 1.6x: 28.8 - 480mm	27 - 450mm
Diaphragm Blades	7	7
Image Circle	Image Circle	APS-C
Focal Length (mm)	18.00 - 300.00	18.00 - 300.00
Brand	Sigma	Nikon
Name	Sigma 18-300mm f/3.5-6.3 DC Macro OS HSM Contemporary	Nikon 18-300mm f/3.5-6.3G ED AF-S DX VR Nikkor
Weight (g)	585	550
Diaphragm Blades Type	rounded	rounded
Lens Construction	17 elements in 13 groups, including 1 SLD and 4 FLD elements; Super Multi-Layer Coating	16 elements in 12 groups; including 3 ED and 3 aspherical elements
Diagonal Angle of View (degree)	5.40 - 76.50	5.30 - 76.00
Length (mm)	101.5	99
Diameter (mm)	79	78.5
Focus Details	Internal HSM (Hyper Sonic Motor) with AF/MF switch	Internal; AF-S "Silent Wave" motor with full-time manual focus override feature (M/A Switch)