Comparison of Nikon 18-300mm f/3.5-6.3G ED AF-S DX VR Nikkor and Vivitar 28-300mm f/4-6.3 Series 1 AF

Attribute	Vivitar 28-300mm f/4-6.3 Series 1 AF ×	Nikon 18-300mm f/3.5-6.3G ED AF-S DX VR Nikkor ×
Notes	Available AF mounts: Canon, Minolta, Nikon	VR (Vibration Reduction) minimizes camera shake by offering a shutter speed equivalent to 4 stops faster
Magnification Ratio (x)	0.18	0.32
Filter Size (mm)	77	67
Length (mm)	122	99
Closest Focus (m)	1.9	0.48
Diagonal Angle of View (degree)	8.20 - 75.00	5.30 - 76.00
Focus Details	AF/MF switch	Internal; AF-S "Silent Wave" motor with full-time manual focus override feature (M/A Switch)
Focal Length (mm)	28.00 - 300.00	18.00 - 300.00
APS Equivalent	1.5x: 42 - 450mm; 1.6x: 44.8 - 480mm	27 - 450mm
Brand	Vivitar	Nikon
Image Circle	35mm	APS-C
Name	Vivitar 28-300mm f/4-6.3 Series 1 AF	Nikon 18-300mm f/3.5-6.3G ED AF-S DX VR Nikkor
Weight (g)	570	550
Type	Standard Zoom	Standard Zoom
Aperture (f)	4.00 - 16.00	3.50 - 40.00
Diaphragm Blades	-	7
Diaphragm Blades Type	-	rounded
Lens Construction	17 elements in 15 groups	16 elements in 12 groups; including 3 ED and 3 aspherical elements
Zoom System	Push-Pull	Rotary
Diameter (mm)	80	78.5