Comparison of Fujinon XF 50-140mm ƒ/2.8 R LM OIS WR and Tamron SP AF 180mm f/3.5 Di LD IF Macro 1:1

Attribute	Tamron SP AF 180mm f/3.5 Di LD IF Macro 1:1 ×	Fujinon XF 50-140mm ƒ/2.8 R LM OIS WR ×
Notes	Available mounts: Canon, Minolta, Nikon	For Fujifilm X-mount; Improved optical image stabilization; Weather sealed; Nano-GI (Gradient Index) coating
Magnification Ratio (x)	1	0.12
Filter Size (mm)	72	72
Length (mm)	165	175.9
Closest Focus (m)	0.47	1
Diagonal Angle of View (degree)	14.00	11.60 - 31.70
Focus Details	Internal	AF via Triple Linear Motor for high-speed, quiet AF
Focal Length (mm)	180.00	50.00 - 140.00
APS Equivalent	1.5x: 270mm; 1.6x: 288mm	76 - 213mm
Brand	Tamron	Fujinon
Image Circle	Image Circle	APS-C (Fujifilm X-mount)
Name	Tamron SP AF 180mm f/3.5 Di LD IF Macro 1:1	Fujinon XF 50-140mm ƒ/2.8 R LM OIS WR
Weight (g)	921	995
Type	Telephoto Prime Macro	Telephoto Zoom
Aperture (f)	3.50 - 32.00	2.80 - 22.00
Diaphragm Blades	7	7
Diaphragm Blades Type	-	rounded
Lens Construction	14 elements in 11 groups, including 2 LD elements	23 elements in 16 groups, including 5 extra low dispersion (ED) and 1 super extra low dispersion (SLD) elements; Nano-GI coating
Zoom System	-	Rotary
Diameter (mm)	84	82.9