Comparison of Nikon 55-200mm f/4-5.6G ED AF-S DX VR II Nikkor and Sigma 55-200mm f/4.5-5.6 DC

Attribute	Sigma 55-200mm f/4.5-5.6 DC ×	Nikon 55-200mm f/4-5.6G ED AF-S DX VR II Nikkor ×
Filter Size (mm)	55	52
Notes	Available AF Mounts: Canon, Nikon, Pentax, Sigma, Sony, Four-Thirds; HSM version available for Nikon mount	Image Stabilization (3-stops); DX Nikkor for use with Nikon Digital SLR models only.
Closest Focus (m)	1.1	1.1
Magnification Ratio (x)	0.22	0.23
Diameter (mm)	71.5	70.5
Type	Telephoto Zoom	Telephoto Zoom
APS Equivalent	1.5x: 82.5 - 300mm; 1.6x: 88 - 320mm	82 - 300mm
Diagonal Angle of View (degree)	7.10 - 25.50	8.00 - 28.80
Image Circle	Image Circle	APS-C
Focal Length (mm)	55.00 - 200.00	55.00 - 200.00
Brand	Sigma	Nikon
Name	Sigma 55-200mm f/4.5-5.6 DC	Nikon 55-200mm f/4-5.6G ED AF-S DX VR II Nikkor
Weight (g)	310	300
Aperture (f)	4.50 - 22.00	4.00 - 32.00
Diaphragm Blades	8	7
Diaphragm Blades Type	-	rounded
Lens Construction	12 elements in 9 groups	13 elements in 9 groups, including one ED element
Zoom System	Rotary	Rotary
Length (mm)	87.1	83
Front Element Rotation	-	-
Focus Details	Internal; HSM version available for Nikon mount	AF-S "Silent Wave" motor; Internal focusing; Focus mode switch enables quick switching between A (Autofocus) and M (Manual Focus).