Comparison of Sigma 120-300mm ƒ/2.8 DG OS HSM Sports and Sigma 120-300mm f/2.8 EX DG OS HSM APO

Attribute	Sigma 120-300mm ƒ/2.8 DG OS HSM Sports ×	Sigma 120-300mm f/2.8 EX DG OS HSM APO ×
Notes	Image Stabilized (up to 4 stops); Available AF Mounts: Canon, Nikon, Sigma; Accessories: metal lens hood, lens case, tripod socket (TS-51).	Image Stabilized (up to 4 stops). Available AF Mounts: Sigma, Canon, Nikon. Included Accessories: Bayonet type Hood (LH1128-01), Tripod socket (TS-31
Magnification Ratio (x)	0.12	0.12
Filter Size (mm)	105	105
Length (mm)	291	289.2
Closest Focus (m)	1.5	1.5
Diagonal Angle of View (degree)	8.20 - 20.40	8.20 - 20.40
Focus Details	Internal; Hypersonic Motor (HSM) with full-time manual override	Internal; HSM with full-time manual override
Focal Length (mm)	120.00 - 300.00	120.00 - 300.00
APS Equivalent	1.5x: 180 - 450mm; 1.6x: 192 - 480mm	1.5x: 180 - 450mm; 1.6x: 192 - 480mm
Brand	Sigma	Sigma
Image Circle	35mm	35mm
Name	Sigma 120-300mm ƒ/2.8 DG OS HSM Sports	Sigma 120-300mm f/2.8 EX DG OS HSM APO
Weight (g)	3.062	-
Type	Telephoto Zoom	Telephoto Zoom
Aperture (f)	2.80 - 22.00	2.80 - 22.00
Diaphragm Blades	9	9
Diaphragm Blades Type	rounded	rounded
Lens Construction	23 elements in 18 groups	23 elements in 18 groups, including 1 SLD and 2 FLD elements
Zoom System	Rotary; Internal	Rotary; Internal
Diameter (mm)	124.4	114.4