Comparison of Sigma 55-200mm f/4.5-5.6 DC and Tamron AF 55-200mm F4-5.6 Di II LD Macro

Attribute	Sigma 55-200mm f/4.5-5.6 DC ×	Tamron AF 55-200mm F4-5.6 Di II LD Macro ×
Filter Size (mm)	55	52
Closest Focus (m)	1.1	0.95
Magnification Ratio (x)	0.22	0.29
Length (mm)	87.1	83
Front Element Rotation	-	-
Diagonal Angle of View (degree)	7.10 - 25.50	8.00 - 28.50
Focus Details	Internal; HSM version available for Nikon mount	-
Focal Length (mm)	55.00 - 200.00	55.00 - 200.00
APS Equivalent	1.5x: 82.5 - 300mm; 1.6x: 88 - 320mm	1.5x: 82.5 - 300mm; 1.6x: 88 - 320mm
Brand	Sigma	Tamron
Image Circle	Image Circle	APS-C
Name	Sigma 55-200mm f/4.5-5.6 DC	Tamron AF 55-200mm F4-5.6 Di II LD Macro
Weight (g)	310	295
Type	Telephoto Zoom	Telephoto Zoom
Notes	Available AF Mounts: Canon, Nikon, Pentax, Sigma, Sony, Four-Thirds; HSM version available for Nikon mount	Available AF Mounts: Canon, Konica Minolta, Nikon; Included Accessories: Lens Hood
Diaphragm Blades	8	9
Aperture (f)	4.50 - 22.00	4.00 - 32.00
Lens Construction	12 elements in 9 groups	13 elements in 9 groups
Zoom System	Rotary	Rotary
Diameter (mm)	71.5	71.6