Comparison of Nikon 70-200mm ƒ/2.8G ED-IF AF-S VR Nikkor and Sigma 70-200mm ƒ/2.8 EX DG OS HSM APO

Attribute	Nikon 70-200mm ƒ/2.8G ED-IF AF-S VR Nikkor ×	Sigma 70-200mm ƒ/2.8 EX DG OS HSM APO ×
Aperture (f)	2.80 - 22.00	2.80 - 22.00
Filter Size (mm)	77	77
Notes	Image Stabilization; Included Accessories: HB-29 Hood, CL-M2 Case, Tripod Collar	Image Stabilized. Available AF Mounts: Canon, Nikon, Pentax, Sigma, Sony. Included Accessories: Case, Petal-type Hood (LH850-02), Hood Adapter, Tripo
Closest Focus (m)	1.4	1.4
Magnification Ratio (x)	0.18	0.13
Diameter (mm)	86	86.4
Type	Telephoto Zoom	Telephoto Zoom
APS Equivalent	105 - 300mm	1.5x: 105 - 300mm; 1.6x: 112 - 320mm
Diaphragm Blades	9	9
Image Circle	35mm	35mm
Focal Length (mm)	70.00 - 200.00	70.00 - 200.00
Brand	Nikon	Sigma
Name	Nikon 70-200mm ƒ/2.8G ED-IF AF-S VR Nikkor	Sigma 70-200mm ƒ/2.8 EX DG OS HSM APO
Weight (g)	1450	1430
Diagonal Angle of View (degree)	12.30 - 34.30	12.30 - 34.30
Lens Construction	21 elements in 15 groups, including 5 ED Elements	22 elements in 17 groups, including 3 SLD and 2 FLD elements
Zoom System	Rotary	Rotary with lock; Internal
Length (mm)	216	197.6
Diaphragm Blades Type	-	rounded
Focus Details	Silent Wave Motor; Internal Focusing	Internal; HSM with full-time manual override