Comparison of Olympus 150-400mm f/4.5 TC1.25x IS PRO ED M.Zuiko Digital and Pentax 560mm f/5.6 ED AW HD DA

Attribute	Pentax 560mm f/5.6 ED AW HD DA ×	Olympus 150-400mm f/4.5 TC1.25x IS PRO ED M.Zuiko Digital ×
Aperture (f)	5.60 - 45.00	1.25 - 29.00
Diaphragm Blades Type	rounded	rounded
Filter Size (mm)	112	95
Notes	Built-in slide-out lens hood. Included accessories: case, tripod adapter.	Built-in image stabilization CIPA rated for 4.5 stops, Supported with 5-axis Sync IS up to 8 stops at 150mm, 6 stops at 400mm
Focus Details	Internal with DC motor; Quick-Shift Focus system	-
Type	Telephoto Prime	Telephoto Zoom
Diaphragm Blades	9	9
Diameter (mm)	130	115.8
Image Circle	APS-C	Image Circle
Focal Length (mm)	560.00	150.00 - 400.00
Brand	Pentax	Olympus
Name	Pentax 560mm f/5.6 ED AW HD DA	Olympus 150-400mm f/4.5 TC1.25x IS PRO ED M.Zuiko Digital
Weight (g)	3.04	1.875
Diagonal Angle of View (degree)	2.90	8.20
Lens Construction	6 elements in 5 groups	28 elements in 18 groups (Built-in teleconverter : 7 elements in 4 groups); (1 EDA lens, 4 Super ED lenses, 2 ED lenses, 2 HR lenses, 1 HD lens)
Zoom System	-	Rotary
Closest Focus (m)	5.6	1.3
35mm Equivalent	-	300-800mm
Length (mm)	522	314.3
APS Equivalent	859mm	-
Magnification Ratio (x)	0.1	0.12