Comparison of Nikon 28-300mm ƒ/3.5-5.6G ED VR AF-S Nikkor and Sigma 18-250mm ƒ/3.5-6.3 DC OS HSM

Attribute	Nikon 28-300mm ƒ/3.5-5.6G ED VR AF-S Nikkor ×	Sigma 18-250mm ƒ/3.5-6.3 DC OS HSM ×
Notes	VR II Image Stabilization (up to 4 stops); Nikon Super Integrated Coating (SIC); Included Accessories: HB-50 Hood, CL-1120 Soft Lens Case.	Image Stabilization; Available AF mounts: Sigma, Canon, Nikon, Pentax, Sony; Includes petal-type lens hood.
Magnification Ratio (x)	0.32	0.29
Filter Size (mm)	77	72
Length (mm)	114.5	101
Closest Focus (m)	0.5	0.45
Diagonal Angle of View (degree)	8.20 - 74.00	5.70 - 69.30
Focus Details	AF-S with Silent Wave Motor (SWM) and internal focusing; M/A focus mode switch	Internal with AF/MF switch
Focal Length (mm)	28.00 - 300.00	18.00 - 250.00
APS Equivalent	42 - 450mm	1.5x: 27 - 375mm; 1.6x: 28.8 - 400mm
Brand	Nikon	Sigma
Image Circle	35mm	Image Circle
Name	Nikon 28-300mm ƒ/3.5-5.6G ED VR AF-S Nikkor	Sigma 18-250mm ƒ/3.5-6.3 DC OS HSM
Weight (g)	800	630
Type	Standard Zoom	Standard Zoom
Aperture (f)	3.50 - 38.00	3.50 - 22.00
Diaphragm Blades	9	7
Diaphragm Blades Type	rounded	-
Lens Construction	19 elements in 14 groups, including 3 aspherical and 2 ED elements	18 elements in 14 groups, including 4 SLD and 3 aspherical elements
Zoom System	Rotary with Zoom Lock Switch	Rotary
Diameter (mm)	83	79