Comparison of Canon EF 70-200mm f/4L IS II USM and Tamron 70-210mm f/4 Di VC USD (Model A034)

Attribute	Canon EF 70-200mm f/4L IS II USM ×	Tamron 70-210mm f/4 Di VC USD (Model A034) ×
Aperture (f)	4.00 - 32.00	4.00 - 32.00
Filter Size (mm)	72	67
Notes	Image stabilization with up to 5.0 stops of correction (CIPA); Dust and moisture resistant.	Moisture-Resistant Construction; Image Stabilized (CIPA rated to 4-stops); Available mounts: Canon EF, Nikon F
Closest Focus (m)	1	0.95
Magnification Ratio (x)	0.27	0.32
Zoom System	Rotary	Rotary
Type	Telephoto Zoom	Telephoto Zoom
APS Equivalent	112 - 320mm	1.5x: 105 - 315mm; 1.6x: 112 - 336mm
Diaphragm Blades	9	9
Image Circle	35mm	35mm
Focal Length (mm)	70.00 - 200.00	70.00 - 210.00
Brand	Canon	Tamron
Name	Canon EF 70-200mm f/4L IS II USM	Tamron 70-210mm f/4 Di VC USD (Model A034)
Weight (g)	780	859
Diaphragm Blades Type	rounded	rounded
Lens Construction	20 elements in 15 groups, including 1 flourite element and 2 UD elements; Air Sphere coating; Fluorine coating	20 elements in 14 groups, including 3 LD (Low Dispersion) elements; Fluorine Coating
Diagonal Angle of View (degree)	12.00 - 34.00	11.80 - 34.30
Length (mm)	176	175
Diameter (mm)	80	76
Focus Details	Internal; Ultrasonic Motor (USM) with full-time manual focus; Focus limit switch	Internal using USD (Ultrasonic Silent Drive) motor with continuous manual focus override; AF/MF switch