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

Attribute	Nikon 55-200mm f/4-5.6G IF-ED AF-S DX VR Nikkor ×	Sigma 55-200mm f/4.5-5.6 DC ×
Aperture (f)	4.00 - 32.00	4.50 - 22.00
Filter Size (mm)	52	55
Notes	Image Stabilization; DX Nikkor for use with Nikon Digital SLR models only; Lens hood, soft case included.	Available AF Mounts: Canon, Nikon, Pentax, Sigma, Sony, Four-Thirds; HSM version available for Nikon mount
Closest Focus (m)	1.1	1.1
Magnification Ratio (x)	0.23	0.22
Diameter (mm)	73	71.5
Type	Telephoto Zoom	Telephoto Zoom
APS Equivalent	82 - 300mm	1.5x: 82.5 - 300mm; 1.6x: 88 - 320mm
Diaphragm Blades	9	8
Image Circle	APS-C	Image Circle
Focal Length (mm)	55.00 - 200.00	55.00 - 200.00
Brand	Nikon	Sigma
Name	Nikon 55-200mm f/4-5.6G IF-ED AF-S DX VR Nikkor	Sigma 55-200mm f/4.5-5.6 DC
Weight (g)	335	310
Diagonal Angle of View (degree)	8.00 - 28.80	7.10 - 25.50
Lens Construction	15 elements in 11 groups, including one ED element	12 elements in 9 groups
Zoom System	Rotary	Rotary
Length (mm)	99.5	87.1
Front Element Rotation	-	-
Focus Details	AF-S "Silent Wave" motor; Focus mode switch enables quick switching between A (Autofocus) and M (Manual Focus).	Internal; HSM version available for Nikon mount