Comparison of Panasonic 100-400mm ƒ/4-6.3 ASPH Power OIS Leica DG Vario-Elmar and Tamron SP AF 200-500mm f/5-6.3 Di LD IF

Attribute	Tamron SP AF 200-500mm f/5-6.3 Di LD IF ×	Panasonic 100-400mm ƒ/4-6.3 ASPH Power OIS Leica DG Vario-Elmar ×
Filter Size (mm)	86	72
Notes	Available mounts: Canon, Minolta, Nikon	Additional features: Power O.I.S. Compatible with Dual Image Stabilization; Weather Sealed
Length (mm)	227	171.5
Magnification Ratio (x)	0.2	0.25
Diameter (mm)	93.5	83
Closest Focus (m)	2.5	1.4
Focal Length (mm)	200.00 - 500.00	100.00 - 400.00
Diagonal Angle of View (degree)	5.00 - 12.00	3.10 - 12.00
Brand	Tamron	Panasonic
Image Circle	Image Circle	Micro Four-Thirds
Name	Tamron SP AF 200-500mm f/5-6.3 Di LD IF	Panasonic 100-400mm ƒ/4-6.3 ASPH Power OIS Leica DG Vario-Elmar
Weight (g)	1237	985
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 10 groups, including two LD (Low Dispersion) elements	20 elements in 13 groups, including 1 aspherical ED, 1 UED and 2 ED elements
Zoom System	Rotary	Rotary
Focus Details	Internal	240fps AF Drive with Focus Limiting switch
APS Equivalent	1.5x: 300 - 750mm; 1.6x: 320 - 800mm	-
35mm Equivalent	-	200 - 800mm