Comparison of Olympus 75-300mm ƒ/4.8-6.7 ED M.Zuiko Digital and Tamron AF 75-300mm f/4-5.6 LD Macro

Attribute	Tamron AF 75-300mm f/4-5.6 LD Macro ×	Olympus 75-300mm ƒ/4.8-6.7 ED M.Zuiko Digital ×
Filter Size (mm)	62	58
Notes	Available AF Mounts: Canon, Minolta, Nikon, Pentax; Included Accessories: Lens Hood	Included Accessores: Lens Hood
Length (mm)	118.7	116
Magnification Ratio (x)	0.26	0.18
Diameter (mm)	76.6	70
Closest Focus (m)	1.5	0.9
Focal Length (mm)	75.00 - 300.00	75.00 - 300.00
Diagonal Angle of View (degree)	8.00 - 33.00	4.10 - 16.00
Brand	Tamron	Olympus
Image Circle	35mm	Micro Four-Thirds
Name	Tamron AF 75-300mm f/4-5.6 LD Macro	Olympus 75-300mm ƒ/4.8-6.7 ED M.Zuiko Digital
Weight (g)	435	430
Type	Telephoto Zoom	Telephoto Zoom
Aperture (f)	4.00 - 22.00	4.80 - 22.00
Diaphragm Blades	9	7
Diaphragm Blades Type	-	rounded
Lens Construction	13 elements in 9 groups	18 elements in 13 groups, including 2 ED and 3 HR elements
Zoom System	Rotary	Rotary
Focus Details	-	Rear focusing with high-speed, silent AF (MSC)
APS Equivalent	1.5x: 112 - 450mm; 1.6x: 120 - 480mm	-
35mm Equivalent	-	150 - 600mm