Comparison of Fujinon XF 70-300mm f/4-5.6 R LM OIS WR and Sigma APO 170-500mm f/5-6.3 DG

Attribute	Sigma APO 170-500mm f/5-6.3 DG ×	Fujinon XF 70-300mm f/4-5.6 R LM OIS WR ×
Notes	Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax	For Fujifilm X-mount; Optical image stabilization (5.5 stops); Dedicated aperture ring; Compatible with 1.4x & 2.0x teleconverters.
Magnification Ratio (x)	0.15	0.33
Filter Size (mm)	86	67
Length (mm)	232	132.5
Closest Focus (m)	3	0.83
Diagonal Angle of View (degree)	5.00 - 14.50	5.40 - 22.90
Focus Details	Internal	Internal linear-motor drive system
Focal Length (mm)	170.00 - 500.00	70.00 - 300.00
APS Equivalent	1.5x: 255 - 750mm; 1.6x: 272 - 800mm	107 - 457mm
Brand	Sigma	Fujinon
Image Circle	35mm	APS-C (Fujifilm X-mount)
Name	Sigma APO 170-500mm f/5-6.3 DG	Fujinon XF 70-300mm f/4-5.6 R LM OIS WR
Weight (g)	1345	795
Type	Telephoto Zoom	Telephoto Zoom
Aperture (f)	5.00 - 32.00	4.00 - 22.00
Diaphragm Blades	9	9
Diaphragm Blades Type	-	rounded
Lens Construction	13 elements in 11 groups, including 1 aspherical and 3 SLD elements	17 elements in 12 groups, including one aspherical element and two extra- low dispersion (ED) elements
Zoom System	Rotary	Rotary
Diameter (mm)	92.5	75