Comparison of Sigma 18-50mm f/2.8 EX DC and Sigma 18-50mm ƒ/2.8 EX DC Macro

Attribute	Sigma 18-50mm ƒ/2.8 EX DC Macro ×	Sigma 18-50mm f/2.8 EX DC ×
Filter Size (mm)	72	67
Notes	Available AF Mounts: Sigma, Canon, Nikon, Sony, Pentax, Four-Thirds	Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax, Four-Thirds
Closest Focus (m)	0.2	0.28
Magnification Ratio (x)	0.33	0.2
Type	Standard Zoom	Standard Zoom
Length (mm)	85.8	84.1
APS Equivalent	1.5x: 27 - 75mm; 1.6x: 28.8 - 80mm	1.5x: 27 - 75mm; 1.6x: 28.8 - 80mm
Zoom System	Rotary, non-telescoping	Rotary, non-telescoping
Image Circle	Image Circle	Image Circle
Focal Length (mm)	18.00 - 50.00	18.00 - 50.00
Brand	Sigma	Sigma
Name	Sigma 18-50mm ƒ/2.8 EX DC Macro	Sigma 18-50mm f/2.8 EX DC
Weight (g)	450	445
Aperture (f)	2.80 - 22.00	2.80 - 22.00
Diaphragm Blades	7	7
Diagonal Angle of View (degree)	27.90 - 69.30	27.90 - 69.30
Lens Construction	15 elements in 13 groups, including aspherical and Special Low Dispersion (SLD) elementss	15 elements in 13 groups, including two aspherical elements and one Special Low Dispersion (SLD) lens
Diameter (mm)	79	74.1
Focus Details	Internal focusing system	Internal focusing system