Comparison of Tamron 16-300mm f/3.5-6.3 Di II VC PZD Macro (Model B016) and Vivitar 28-300mm f/4-6.3 Series 1 AF

Attribute	Vivitar 28-300mm f/4-6.3 Series 1 AF ×	Tamron 16-300mm f/3.5-6.3 Di II VC PZD Macro (Model B016) ×
Notes	Available AF mounts: Canon, Minolta, Nikon	Includes flower-shaped lens hood. Available AF mounts: Canon EF-S, Nikon F, Sony A; VC Image Stabilization; Sony version does not include VC.
Magnification Ratio (x)	0.18	0.34
Filter Size (mm)	77	67
Length (mm)	122	99.5
Closest Focus (m)	1.9	0.39
Diagonal Angle of View (degree)	8.20 - 75.00	5.30 - 82.20
Focus Details	AF/MF switch	Internal with Piezo Drive motor; Full-time manual focus function
Focal Length (mm)	28.00 - 300.00	16.00 - 300.00
APS Equivalent	1.5x: 42 - 450mm; 1.6x: 44.8 - 480mm	1.5x: 24 - 450mm 1.6x: 25.6 - 480mm
Brand	Vivitar	Tamron
Image Circle	35mm	APS-C
Name	Vivitar 28-300mm f/4-6.3 Series 1 AF	Tamron 16-300mm f/3.5-6.3 Di II VC PZD Macro (Model B016)
Weight (g)	570	540
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 1 Hybrid Aspherical, two LD (Low Dispersion), 1 XR (Extra Refractive index), 1 UXR (Ultra-Extra Refractive Index)
Zoom System	Push-Pull	Rotary
Diameter (mm)	80	75