Comparison of Canon EF 70-300mm f/4-5.6 IS II USM and Tamron 70-300mm ƒ/4-5.6 Di VC USD SP AF

Attribute	Tamron 70-300mm ƒ/4-5.6 Di VC USD SP AF ×	Canon EF 70-300mm f/4-5.6 IS II USM ×
Notes	Image Stabilized. Available AF Mounts: Canon, Nikon, Sony; Included Accessories: Lens Hood	New LCD Lens Information Display; Image Stabilization with up to 4 stops correction.
Magnification Ratio (x)	0.25	0.25
Filter Size (mm)	62	67
Length (mm)	142.2	145.5
Closest Focus (m)	1.5	1.2
Diagonal Angle of View (degree)	8.30 - 34.40	8.30 - 34.00
Focus Details	USD (Ultrasonic Silent Drive) with full-time manual override	Inner focusing; Full-time manual focus and Nano USM
Focal Length (mm)	70.00 - 300.00	70.00 - 300.00
APS Equivalent	1.5x: 105 - 450mm; 1.6x: 112 - 480mm	112 - 480mm
Brand	Tamron	Canon
Image Circle	35mm	35mm
Name	Tamron 70-300mm ƒ/4-5.6 Di VC USD SP AF	Canon EF 70-300mm f/4-5.6 IS II USM
Weight (g)	765	710
Type	Telephoto Zoom	Telephoto Zoom
Aperture (f)	4.00 - 45.00	4.00 - 45.00
Diaphragm Blades	9	9
Diaphragm Blades Type	-	rounded
Lens Construction	17 elements in 12 groups, including an LD and an XLD (Extra Low Dispersion) element	17 elements in 12 groups, including 1 UD element
Zoom System	Rotary	Rotary
Diameter (mm)	81.3	80