Comparison of Nikon 16-85mm f/3.5-5.6G ED VR DX AF-S Nikkor and Tamron SP AF 28-75mm f/2.8 XR Di LD Aspherical IF

Attribute	Tamron SP AF 28-75mm f/2.8 XR Di LD Aspherical IF ×	Nikon 16-85mm f/3.5-5.6G ED VR DX AF-S Nikkor ×
Notes	Available mounts: Canon, Minolta-D, Nikon-D, Pentax; Includes petal type lens hood.	Image Stabilization. Included Accessories: Flexible Lens Pouch CL-1015, Bayonet Hood HB-39.
Magnification Ratio (x)	0.26	0.22
Filter Size (mm)	67	67
Length (mm)	92	85
Closest Focus (m)	0.33	0.38
Diagonal Angle of View (degree)	32.00 - 75.00	18.80 - 83.00
Focus Details	Internal	Silent Wave Motor; Internal Focusing with AF/MF switch
Focal Length (mm)	28.00 - 75.00	16.00 - 85.00
APS Equivalent	1.5x: 42 - 112.5mm; 1.6x: 44.8 - 120mm	24 - 128mm
Brand	Tamron	Nikon
Image Circle	Image Circle	APS-C
Name	Tamron SP AF 28-75mm f/2.8 XR Di LD Aspherical IF	Nikon 16-85mm f/3.5-5.6G ED VR DX AF-S Nikkor
Weight (g)	510	485
Type	Standard Zoom	Standard Zoom
Aperture (f)	2.80 - 32.00	3.50 - 36.00
Diaphragm Blades	7	7
Diaphragm Blades Type	-	rounded
Lens Construction	16 elements in 14 groups, including one Extra Refractive Index element, four Aspherical elements and three Low Dispersion elements	17 elements in 11 groups, with 2 ED elements and 3 aspherical lenses
Zoom System	Rotary, telescoping	Rotary
Diameter (mm)	73	72