Comparison of Nikon 18-300mm f/3.5-6.3G ED AF-S DX VR Nikkor and Tamron 28-300mm f/3.5-6.3 XR Di VC LD Aspherical IF Macro AF

Attribute	Tamron 28-300mm f/3.5-6.3 XR Di VC LD Aspherical IF Macro AF ×	Nikon 18-300mm f/3.5-6.3G ED AF-S DX VR Nikkor ×
Notes	Image Stabilization; Available mounts: Canon and Nikon; Includes petal type lens hood.	VR (Vibration Reduction) minimizes camera shake by offering a shutter speed equivalent to 4 stops faster
Magnification Ratio (x)	0.33	0.32
Filter Size (mm)	67	67
Length (mm)	99	99
Closest Focus (m)	0.49	0.48
Diagonal Angle of View (degree)	8.25 - 75.38	5.30 - 76.00
Focus Details	Internal	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	Tamron	Nikon
Image Circle	Image Circle	APS-C
Name	Tamron 28-300mm f/3.5-6.3 XR Di VC LD Aspherical IF Macro AF	Nikon 18-300mm f/3.5-6.3G ED AF-S DX VR Nikkor
Weight (g)	550	550
Type	Standard Zoom	Standard Zoom
Aperture (f)	3.50 - 40.00	3.50 - 40.00
Diaphragm Blades	9	7
Diaphragm Blades Type	-	rounded
Lens Construction	18 elements in 13 groups; including aspherical, LD (low dispersion) and AD (anomalous dispersion) elements.	16 elements in 12 groups; including 3 ED and 3 aspherical elements
Zoom System	Rotary, telescoping	Rotary
Diameter (mm)	78	78.5