Comparison of Sigma 150-600mm ƒ/5-6.3 DG HSM OS Contemporary and Tamron SP 150-600mm f/5-6.3 Di VC USD

Attribute	Sigma 150-600mm ƒ/5-6.3 DG HSM OS Contemporary ×	Tamron SP 150-600mm f/5-6.3 Di VC USD ×
Aperture (f)	5.00 - 22.00	5.00 - 40.00
Filter Size (mm)	95	95
Notes	Updated Optical Stabilizer (OS); Dust and splash-proof mount, as well as new water and oil-repellent coating on the front and rear lenses	Available mounts: Canon EF-mount, Nikon F-mount, Sony A-mount; VC Optical Image Stabilization (not supported for Sony)
Closest Focus (m)	2.8	2.7
Magnification Ratio (x)	0.2	0.2
Diameter (mm)	105	105.6
Type	Telephoto Zoom	Telephoto Zoom
APS Equivalent	1.5x: 225 - 900mm; 1.6x: 240 - 960mm	1.5x: 225 - 900mm; 1.6x: 240 - 960mm
Diaphragm Blades	9	9
Image Circle	35mm	Image Circle
Focal Length (mm)	150.00 - 600.00	150.00 - 600.00
Brand	Sigma	Tamron
Name	Sigma 150-600mm ƒ/5-6.3 DG HSM OS Contemporary	Tamron SP 150-600mm f/5-6.3 Di VC USD
Weight (g)	1930	1951
Diaphragm Blades Type	rounded	circular
Lens Construction	20 elements in 14 groups, including 1 FLD and 3 SLD glass elements	20 elements in 13 groups, including 3 LD (Low Dispersion) elements
Zoom System	Rotary (with zoom lock switch)	Rotary
Length (mm)	260	257.8
Diagonal Angle of View (degree)	-	4.10 - 16.40
Focus Details	HSM with manual override (MO) switch	Ultrasonic Silent Drive (USD) with full-time manual focus mechanism