Comparison of Sigma 120-300mm ƒ/2.8 DG OS HSM Sports and Sony 70-200mm f/2.8 G SSM II SAL70200G2

Attribute	Sigma 120-300mm ƒ/2.8 DG OS HSM Sports ×	Sony 70-200mm f/2.8 G SSM II SAL70200G2 ×
Aperture (f)	2.80 - 22.00	2.80 - 32.00
Filter Size (mm)	105	77
Notes	Image Stabilized (up to 4 stops); Available AF Mounts: Canon, Nikon, Sigma; Accessories: metal lens hood, lens case, tripod socket (TS-51).	Faster AF performance and Nano AR coating compared to original version.
Closest Focus (m)	1.5	1.2
Magnification Ratio (x)	0.12	0.21
Zoom System	Rotary; Internal	Rotary
Type	Telephoto Zoom	Telephoto Zoom
APS Equivalent	1.5x: 180 - 450mm; 1.6x: 192 - 480mm	105 - 300mm
Diaphragm Blades	9	9
Image Circle	35mm	35mm (A-mount)
Focal Length (mm)	120.00 - 300.00	70.00 - 200.00
Brand	Sigma	Sony
Name	Sigma 120-300mm ƒ/2.8 DG OS HSM Sports	Sony 70-200mm f/2.8 G SSM II SAL70200G2
Weight (g)	3.062	1.34
Diaphragm Blades Type	rounded	rounded
Lens Construction	23 elements in 18 groups	19 elements in 16 groups, including 4 ED elements
Diagonal Angle of View (degree)	8.20 - 20.40	12.50 - 34.00
Length (mm)	291	196.5
Diameter (mm)	124.4	87
Focus Details	Internal; Hypersonic Motor (HSM) with full-time manual override	Internal; SSM (Super Sonic wave Motor) with 2 Direct Manual Focus modes; Focus Hold; Focus Range Limiter