Comparison of Tamron 70-300mm ƒ/4-5.6 Di VC USD SP AF 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) ×	Tamron 70-300mm ƒ/4-5.6 Di VC USD SP AF ×
Aperture (f)	4.50 - 45.00	4.00 - 45.00
Filter Size (mm)	67	62
Notes	Available mounts: Canon EF, Nikon F; Optical Image Stabiliztion (CIPA: 4 stops); Moisture-Resistant Construction	Image Stabilized. Available AF Mounts: Canon, Nikon, Sony; Included Accessories: Lens Hood
Closest Focus (m)	1.5	1.5
Magnification Ratio (x)	0.28	0.25
Diameter (mm)	86.2	81.3
Type	Telephoto Zoom	Telephoto Zoom
APS Equivalent	1.5x: 150 - 600mm; 1.6x: 160 - 640mm	1.5x: 105 - 450mm; 1.6x: 112 - 480mm
Diaphragm Blades	9	9
Image Circle	Image Circle	35mm
Focal Length (mm)	100.00 - 400.00	70.00 - 300.00
Brand	Tamron	Tamron
Name	Tamron 100-400mm f/4.5-6.3 Di VC USD (Model A035)	Tamron 70-300mm ƒ/4-5.6 Di VC USD SP AF
Weight (g)	1135	765
Diagonal Angle of View (degree)	6.20 - 24.40	8.30 - 34.40
Lens Construction	17 elements in 11 groups, including 3 LD (Low Dispersion) elements; eBAND coating; Fluorine coating	17 elements in 12 groups, including an LD and an XLD (Extra Low Dispersion) element
Zoom System	Rotary	Rotary
Length (mm)	199	142.2
Diaphragm Blades Type	circular	-
Focus Details	Internal; USD (Ultrasonic Silent Drive) motor	USD (Ultrasonic Silent Drive) with full-time manual override