Comparison of Sigma 28-200mm f/3.5-5.6 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 ×	Sigma 28-200mm f/3.5-5.6 Aspherical IF Macro ×
Magnification Ratio (x)	0.15	0.26
Filter Size (mm)	67	62
Focus Details	AF/MF switch	Internal
Closest Focus (m)	0.5	0.48
Lens Construction	15 elements in 13 groups	16 elements in 14 groups, including 2 aspherical elements
Length (mm)	99	77.7
Focal Length (mm)	28.00 - 200.00	28.00 - 200.00
Diagonal Angle of View (degree)	11.00 - 75.00	12.30 - 75.40
Brand	Vivitar	Sigma
Image Circle	35mm	35mm
Name	Vivitar 28-210mm f/4.2-6.5 Series 1 AF	Sigma 28-200mm f/3.5-5.6 Aspherical IF Macro
Weight (g)	395	380
Type	Standard Zoom	Standard Zoom
Notes	Available AF mounts: Canon, Minolta, Nikon, Pentax	Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax; Include 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	3.50 - 22.00
Diaphragm Blades	-	8
Zoom System	Push-Pull	Rotary with lock
Diameter (mm)	72	70