Comparison of Sony FE 70-200mm f/2.8 GM OSS SEL70200GM and Tamron 70-200mm ƒ/2.8 Di VC USD SP (Model A009)

Attribute	Sony FE 70-200mm f/2.8 GM OSS SEL70200GM ×	Tamron 70-200mm ƒ/2.8 Di VC USD SP (Model A009) ×
Aperture (f)	2.80 - 22.00	2.80 - 32.00
Filter Size (mm)	77	77
Notes	Optical SteadyShot (5-axis image stabilization becomes available when used with a series bodies that feature built-in image stabilization)	Available mounts: Canon, Nikon, Sony; Optical Image Stabilization; Included Accessories: Flower-shaped lens hood, detachable tripod mount
Closest Focus (m)	0.96	1.3
Magnification Ratio (x)	0.25	0.13
Zoom System	Rotary	Rotary
Type	Telephoto Zoom	Telephoto Zoom
APS Equivalent	105 - 300mm	1.5x: 105 - 300mm; 1.6x: 112 - 320mm
Diaphragm Blades	11	9
Image Circle	35mm (Full-frame E-Mount)	35mm
Focal Length (mm)	70.00 - 200.00	70.00 - 200.00
Brand	Sony	Tamron
Name	Sony FE 70-200mm f/2.8 GM OSS SEL70200GM	Tamron 70-200mm ƒ/2.8 Di VC USD SP (Model A009)
Weight (g)	1480	1470
Diaphragm Blades Type	rounded	rounded
Lens Construction	23 elements in 18 groups, including 3 aspherical elements with 1 double-sided and 1 XA (eXtreme Aspherical) element, 4 ED (Extra-low-Dispersion) glas	23 elements in 17 groups, including 1 special XLD (Extra Low Dispersion) and 4 LD (Low Dispersion) elements
Diagonal Angle of View (degree)	12.50 - 34.00	12.30 - 34.30
Length (mm)	200	196.7
Diameter (mm)	88	85.8
Focus Details	Two heavy focus groups are rapidly and precisely positioned by separate actuators: a powerful ring SSM (Super Sonic wave Motor) actuator for the fron	Internal Focusing; USD (Ultrasonic Silent Drive) with continuous manual focus mechanism