Comparison of Nikon 18-300mm f/3.5-6.3G ED AF-S DX VR Nikkor and Sigma 28-300mm f/3.5-6.3 DG Macro

Attribute	Nikon 18-300mm f/3.5-6.3G ED AF-S DX VR Nikkor ×	Sigma 28-300mm f/3.5-6.3 DG Macro ×
Notes	VR (Vibration Reduction) minimizes camera shake by offering a shutter speed equivalent to 4 stops faster	Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax
Magnification Ratio (x)	0.32	0.33
Filter Size (mm)	67	62
Length (mm)	99	88
Closest Focus (m)	0.48	0.5
Diagonal Angle of View (degree)	5.30 - 76.00	8.20 - 75.40
Focus Details	Internal; AF-S "Silent Wave" motor with full-time manual focus override feature (M/A Switch)	Internal
Focal Length (mm)	18.00 - 300.00	28.00 - 300.00
APS Equivalent	27 - 450mm	1.5x: 42 - 450mm; 1.6x: 44.8 - 480mm
Brand	Nikon	Sigma
Image Circle	APS-C	35mm
Name	Nikon 18-300mm f/3.5-6.3G ED AF-S DX VR Nikkor	Sigma 28-300mm f/3.5-6.3 DG Macro
Weight (g)	550	490
Type	Standard Zoom	Standard Zoom
Aperture (f)	3.50 - 40.00	3.50 - 22.00
Diaphragm Blades	7	8
Diaphragm Blades Type	rounded	-
Lens Construction	16 elements in 12 groups; including 3 ED and 3 aspherical elements	15 elements in 13 groups, including 4 aspherical and 2 SLD elements
Zoom System	Rotary	Rotary with lock
Diameter (mm)	78.5	74