Comparison of Olympus 100-400mm f/5.0-6.3 IS ED M.Zuiko Digital and Sony 70-400mm f/4-5.6G SSM II SAL70400G2

Attribute	Sony 70-400mm f/4-5.6G SSM II SAL70400G2 ×	Olympus 100-400mm f/5.0-6.3 IS ED M.Zuiko Digital ×
Aperture (f)	4.00 - 32.00	5.00 - 22.00
Diaphragm Blades Type	circular	rounded
Filter Size (mm)	77	72
Notes	For Sony A-mount. 4x faster autofocus and improved optical performance compared to prior version. Included Accessories: Front and rear lens caps, ALC	Built-in image stabilization CIPA rated for 3.0 stops, Not supported with 5-axis Sync IS; IPX1-rated Dust and splash-proof weather sealing
Focus Details	Super Sonic wave Motor (SSM), with focus-mode/range switch and three focus-hold buttons	-
Type	Telephoto Zoom	Telephoto Zoom
Diaphragm Blades	9	9
Diameter (mm)	94.5	86.5
Image Circle	35mm	Image Circle
Focal Length (mm)	70.00 - 400.00	100.00 - 400.00
Brand	Sony	Olympus
Name	Sony 70-400mm f/4-5.6G SSM II SAL70400G2	Olympus 100-400mm f/5.0-6.3 IS ED M.Zuiko Digital
Weight (g)	1.5	1.12
Diagonal Angle of View (degree)	6.00 - 34.00	12.00
Lens Construction	18 elements in 12 groups, including 2 extra-low dispersion glass elements; Nano AR Coating	21 elements in 15 groups (4 ED lenses, 2 Super HR lenses, 2 HR lenses); ZERO coating
Zoom System	Rotary	Rotary
Closest Focus (m)	1.5	1.3
35mm Equivalent	-	200-800mm
Length (mm)	196	205.7
APS Equivalent	105 - 600mm	-
Magnification Ratio (x)	0.27	0.09