Comparison of Sigma 18-250mm f/3.5-6.3 DC Macro OS HSM and Sigma 28-300mm f/3.5-6.3 DG Macro

Attribute	Sigma 28-300mm f/3.5-6.3 DG Macro ×	Sigma 18-250mm f/3.5-6.3 DC Macro OS HSM ×
Notes	Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax	Image Stabilization; Available AF mounts: Sigma, Sony, Nikon, Canon and Pentax.
Magnification Ratio (x)	0.33	0.34
Filter Size (mm)	62	62
Length (mm)	88	88.6
Closest Focus (m)	0.5	0.35
Diagonal Angle of View (degree)	8.20 - 75.40	5.70 - 69.30
Focus Details	Internal	Internal HSM (Hyper Sonic Motor) with AF/MF switch
Focal Length (mm)	28.00 - 300.00	18.00 - 250.00
APS Equivalent	1.5x: 42 - 450mm; 1.6x: 44.8 - 480mm	1.5x: 27 - 375mm; 1.6x: 28.8 - 400mm
Brand	Sigma	Sigma
Image Circle	35mm	Image Circle
Name	Sigma 28-300mm f/3.5-6.3 DG Macro	Sigma 18-250mm f/3.5-6.3 DC Macro OS HSM
Weight (g)	490	470
Type	Standard Zoom	Standard Zoom
Aperture (f)	3.50 - 22.00	3.50 - 22.00
Diaphragm Blades	8	7
Diaphragm Blades Type	-	rounded
Lens Construction	15 elements in 13 groups, including 4 aspherical and 2 SLD elements	16 elements in 13 groups, including 1 Special Low Dispersion (SLD) and 3 aspherical elements
Zoom System	Rotary with lock	Rotary
Diameter (mm)	74	73.5