Comparison of Sigma 500mm f/4 DG OS HSM Sports and Sigma 120-300mm ƒ/2.8 DG OS HSM Sports

Attribute	Sigma 500mm f/4 DG OS HSM Sports ×	Sigma 120-300mm ƒ/2.8 DG OS HSM Sports ×
Diaphragm Blades Type	rounded	rounded
Notes	Image Stabilized; Available AF Mounts: Canon EF, Nikon F, Sigma SA.	Image Stabilized (up to 4 stops); Available AF Mounts: Canon, Nikon, Sigma; Accessories: metal lens hood, lens case, tripod socket (TS-51).
Aperture (f)	4.00 - 32.00	2.80 - 22.00
Magnification Ratio (x)	0.15	0.12
Filter Size (mm)	46	105
Weight (g)	-	3.062
Type	Telephoto Prime	Telephoto Zoom
Diaphragm Blades	9	9
Lens Construction	16 elements in 11 groups, including 1 SLD and two FLD elements	23 elements in 18 groups
Focal Length (mm)	500.00	120.00 - 300.00
APS Equivalent	1.5x: 750mm; 1.6x: 800mm	1.5x: 180 - 450mm; 1.6x: 192 - 480mm
Image Circle	35mm	35mm
Brand	Sigma	Sigma
Name	Sigma 500mm f/4 DG OS HSM Sports	Sigma 120-300mm ƒ/2.8 DG OS HSM Sports
Diagonal Angle of View (degree)	5.00	8.20 - 20.40
Focus Details	Internal; HSM with full-time manual override	Internal; Hypersonic Motor (HSM) with full-time manual override
Diameter (mm)	145	124.4
Length (mm)	381	291
Zoom System	-	Rotary; Internal
Closest Focus (m)	3.5	1.5