Comparison of Tamron AF 28-200mm f/3.8-5.6 XR Di Aspherical IF Macro and Vivitar 28-210mm f/4.2-6.5 Series 1 AF

Attribute	Vivitar 28-210mm f/4.2-6.5 Series 1 AF ×	Tamron AF 28-200mm f/3.8-5.6 XR Di Aspherical IF Macro ×
Magnification Ratio (x)	0.15	0.25
Filter Size (mm)	67	62
Focus Details	AF/MF switch	Internal
Closest Focus (m)	0.5	0.49
Lens Construction	15 elements in 13 groups	15 elements in 14 groups, including aspherical and XR elements
Length (mm)	99	75.2
Focal Length (mm)	28.00 - 200.00	28.00 - 200.00
Diagonal Angle of View (degree)	11.00 - 75.00	12.40 - 75.40
Brand	Vivitar	Tamron
Image Circle	35mm	35mm
Name	Vivitar 28-210mm f/4.2-6.5 Series 1 AF	Tamron AF 28-200mm f/3.8-5.6 XR Di Aspherical IF Macro
Weight (g)	395	354
Type	Standard Zoom	Standard Zoom
Notes	Available AF mounts: Canon, Minolta, Nikon, Pentax	Available AF Mounts: Canon, Minolta, Nikon, Pentax; Included Accessories: Lens Hood
APS Equivalent	1.5x: 42 - 315mm; 1.6x: 44.8 - 336mm	1.5x: 42 - 300mm; 1.6x: 44.8 - 320mm
Aperture (f)	4.20 - 22.00	3.80 - 22.00
Diaphragm Blades	-	7
Zoom System	Push-Pull	Rotary
Diameter (mm)	72	71