Comparison of Sony 70-300mm f/4.5-5.6G SSM SAL-70300G and Tamron 100-400mm f/4.5-6.3 Di VC USD (Model A035)

Attribute	Tamron 100-400mm f/4.5-6.3 Di VC USD (Model A035) ×	Sony 70-300mm f/4.5-5.6G SSM SAL-70300G ×
Aperture (f)	4.50 - 45.00	4.50 - 32.00
Filter Size (mm)	67	62
Notes	Available mounts: Canon EF, Nikon F; Optical Image Stabiliztion (CIPA: 4 stops); Moisture-Resistant Construction	Included Accessories: SH0010 Petal Lens Hood
Closest Focus (m)	1.5	1.2
Magnification Ratio (x)	0.28	0.25
Zoom System	Rotary	Rotary
Type	Telephoto Zoom	Telephoto Zoom
APS Equivalent	1.5x: 150 - 600mm; 1.6x: 160 - 640mm	105 - 450mm
Diaphragm Blades	9	9
Image Circle	Image Circle	35mm
Focal Length (mm)	100.00 - 400.00	70.00 - 300.00
Brand	Tamron	Sony
Name	Tamron 100-400mm f/4.5-6.3 Di VC USD (Model A035)	Sony 70-300mm f/4.5-5.6G SSM SAL-70300G
Weight (g)	1135	800
Diaphragm Blades Type	circular	circular
Lens Construction	17 elements in 11 groups, including 3 LD (Low Dispersion) elements; eBAND coating; Fluorine coating	16 elements in 11 groups, including extra-low dispersion glass
Diagonal Angle of View (degree)	6.20 - 24.40	8.20 - 34.00
Length (mm)	199	135.5
Diameter (mm)	86.2	82.5
Focus Details	Internal; USD (Ultrasonic Silent Drive) motor	Super Sonic wave Motor (SSM), with focus range limiter and focus hold