Comparison of Pentax 560mm f/5.6 ED AW HD DA and Sony 500mm f/4 G SSM SAL-500F40G

Attribute	Pentax 560mm f/5.6 ED AW HD DA ×	Sony 500mm f/4 G SSM SAL-500F40G ×
Filter Size (mm)	112	42
Notes	Built-in slide-out lens hood. Included accessories: case, tripod adapter.	Sony A-mount. Weather and dust resistant. Built to order. Carbon fiber lens hood included.
Closest Focus (m)	5.6	4
Magnification Ratio (x)	0.1	0.135
Type	Telephoto Prime	Telephoto Prime
Length (mm)	522	367.5
APS Equivalent	859mm	750mm
Diagonal Angle of View (degree)	2.90	5.00
Image Circle	APS-C	35mm
Focal Length (mm)	560.00	500.00
Brand	Pentax	Sony
Name	Pentax 560mm f/5.6 ED AW HD DA	Sony 500mm f/4 G SSM SAL-500F40G
Weight (g)	3.04	3.46
Aperture (f)	5.60 - 45.00	4.00 - 32.00
Diaphragm Blades	9	9
Diaphragm Blades Type	rounded	rounded
Lens Construction	6 elements in 5 groups	11 elements in 10 groups, including 3 ED elements; AR Nano Coating
Diameter (mm)	130	140
Focus Details	Internal with DC motor; Quick-Shift Focus system	Internal; SSM (Super Sonic wave Motor); 4 focus hold buttons, two-way DMF (Direct Manual Focus) mode button and focus range switch