Comparison of Nikon 28-200mm f/3.5-5.6G ED-IF AF Nikkor and Tamron AF 18-270mm ƒ/3.5-6.3 Di II VC PZD (Model B008)

Attribute	Tamron AF 18-270mm ƒ/3.5-6.3 Di II VC PZD (Model B008) ×	Nikon 28-200mm f/3.5-5.6G ED-IF AF Nikkor ×
Aperture (f)	3.50 - 40.00	3.50 - 36.00
Filter Size (mm)	62	62
Notes	New VC mechanism (Image Stabilization). Available AF Mounts: Canon EF-S, Nikon F, Sony A. Included Accessories: Flower-shaped Lens Hood.	Included Accessories: HB-30 Hood
Closest Focus (m)	0.49	0.4
Magnification Ratio (x)	0.26	0.32
Diameter (mm)	74.4	69
Type	Standard Zoom	Standard Zoom
APS Equivalent	1.5x: 27 - 405mm; 1.6x: 28.8 - 432mm	42 - 300mm
Diaphragm Blades	7	7
Image Circle	APS-C	35mm
Focal Length (mm)	18.00 - 270.00	28.00 - 200.00
Brand	Tamron	Nikon
Name	Tamron AF 18-270mm ƒ/3.5-6.3 Di II VC PZD (Model B008)	Nikon 28-200mm f/3.5-5.6G ED-IF AF Nikkor
Weight (g)	450	360
Diagonal Angle of View (degree)	5.90 - 75.50	12.30 - 74.30
Lens Construction	16 elements in 13 groups	12 elements in 11 groups, including 3 asperical and 3 ED elements
Zoom System	Rotary	Rotary
Length (mm)	88	71
Diaphragm Blades Type	rounded	-
Focus Details	Internal with Piezo Drive (PZD) ultrasonic motor	Internal; Focus Limit Switch