Comparison of Fujinon XF 70-300mm f/4-5.6 R LM OIS WR 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) ×	Fujinon XF 70-300mm f/4-5.6 R LM OIS WR ×
Aperture (f)	4.50 - 45.00	4.00 - 22.00
Filter Size (mm)	67	67
Notes	Available mounts: Canon EF, Nikon F; Optical Image Stabiliztion (CIPA: 4 stops); Moisture-Resistant Construction	For Fujifilm X-mount; Optical image stabilization (5.5 stops); Dedicated aperture ring; Compatible with 1.4x & 2.0x teleconverters.
Closest Focus (m)	1.5	0.83
Magnification Ratio (x)	0.28	0.33
Zoom System	Rotary	Rotary
Type	Telephoto Zoom	Telephoto Zoom
APS Equivalent	1.5x: 150 - 600mm; 1.6x: 160 - 640mm	107 - 457mm
Diaphragm Blades	9	9
Image Circle	Image Circle	APS-C (Fujifilm X-mount)
Focal Length (mm)	100.00 - 400.00	70.00 - 300.00
Brand	Tamron	Fujinon
Name	Tamron 100-400mm f/4.5-6.3 Di VC USD (Model A035)	Fujinon XF 70-300mm f/4-5.6 R LM OIS WR
Weight (g)	1135	795
Diaphragm Blades Type	circular	rounded
Lens Construction	17 elements in 11 groups, including 3 LD (Low Dispersion) elements; eBAND coating; Fluorine coating	17 elements in 12 groups, including one aspherical element and two extra- low dispersion (ED) elements
Diagonal Angle of View (degree)	6.20 - 24.40	5.40 - 22.90
Length (mm)	199	132.5
Diameter (mm)	86.2	75
Focus Details	Internal; USD (Ultrasonic Silent Drive) motor	Internal linear-motor drive system