Comparison of Nikon 28-200mm f/3.5-5.6G ED-IF AF Nikkor and Sigma 28-200mm f/3.5-5.6 Aspherical IF Macro

Attribute	Sigma 28-200mm f/3.5-5.6 Aspherical IF Macro ×	Nikon 28-200mm f/3.5-5.6G ED-IF AF Nikkor ×
Filter Size (mm)	62	62
Notes	Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax; Include Accessories: Lens Hood	Included Accessories: HB-30 Hood
Closest Focus (m)	0.48	0.4
Magnification Ratio (x)	0.26	0.32
Type	Standard Zoom	Standard Zoom
Length (mm)	77.7	71
APS Equivalent	1.5x: 42 - 300mm; 1.6x: 44.8 - 320mm	42 - 300mm
Zoom System	Rotary with lock	Rotary
Image Circle	35mm	35mm
Focal Length (mm)	28.00 - 200.00	28.00 - 200.00
Brand	Sigma	Nikon
Name	Sigma 28-200mm f/3.5-5.6 Aspherical IF Macro	Nikon 28-200mm f/3.5-5.6G ED-IF AF Nikkor
Weight (g)	380	360
Aperture (f)	3.50 - 22.00	3.50 - 36.00
Diaphragm Blades	8	7
Diagonal Angle of View (degree)	12.30 - 75.40	12.30 - 74.30
Lens Construction	16 elements in 14 groups, including 2 aspherical elements	12 elements in 11 groups, including 3 asperical and 3 ED elements
Diameter (mm)	70	69
Focus Details	Internal	Internal; Focus Limit Switch