Comparison of Tamron 70-210mm f/4 Di VC USD (Model A034) and Tokina 70-200mm f/4 AT-X AF PRO FX VCM-S SD

Attribute	Tokina 70-200mm f/4 AT-X AF PRO FX VCM-S SD ×	Tamron 70-210mm f/4 Di VC USD (Model A034) ×
Notes	Optical Image Stabilization (3-stops); Available AF Mounts: Nikon; Included Accessories: Lens hood; Tripod collar optional	Moisture-Resistant Construction; Image Stabilized (CIPA rated to 4-stops); Available mounts: Canon EF, Nikon F
Magnification Ratio (x)	0.28	0.32
Filter Size (mm)	67	67
Length (mm)	168	175
Closest Focus (m)	1	0.95
Diagonal Angle of View (degree)	12.70 - 34.80	11.80 - 34.30
Focus Details	Internal with ultrasonic motor	Internal using USD (Ultrasonic Silent Drive) motor with continuous manual focus override; AF/MF switch
Focal Length (mm)	70.00 - 200.00	70.00 - 210.00
APS Equivalent	1.5x: 105 - 300mm; 1.6x: 112 - 320mm	1.5x: 105 - 315mm; 1.6x: 112 - 336mm
Brand	Tokina	Tamron
Image Circle	35mm	35mm
Name	Tokina 70-200mm f/4 AT-X AF PRO FX VCM-S SD	Tamron 70-210mm f/4 Di VC USD (Model A034)
Weight (g)	980	859
Type	Telephoto Zoom	Telephoto Zoom
Aperture (f)	4.00 - 32.00	4.00 - 32.00
Diaphragm Blades	9	9
Diaphragm Blades Type	-	rounded
Lens Construction	19 elements in 14 groups, including 3 SD elements	20 elements in 14 groups, including 3 LD (Low Dispersion) elements; Fluorine Coating
Zoom System	Rotary	Rotary
Diameter (mm)	82	76