Comparison of Sigma 50mm ƒ/1.4 EX DG HSM and Sony 50mm f/1.4 ZA SSM Carl Zeiss Planar T*

Attribute	Sigma 50mm ƒ/1.4 EX DG HSM ×	Sony 50mm f/1.4 ZA SSM Carl Zeiss Planar T* ×
Filter Size (mm)	77	72
Notes	Supported AF Mounts: Canon, Four-Thirds, Nikon, Pentax, Sigma, Sony. * If the camera body does not support HSM, autofocus will not be available.	For Sony A-mount. Included Accessories: Front and rear lens caps, ALC-SH126 lens hood.
Closest Focus (m)	0.45	0.45
Magnification Ratio (x)	0.14	0.14
Type	Standard Prime	Standard Prime
Length (mm)	84.5	71.5
APS Equivalent	1.5x: 75mm; 1.6x: 80mm	75mm
Diagonal Angle of View (degree)	47.00	47.00
Image Circle	35mm	35mm
Focal Length (mm)	50.00	50.00
Brand	Sigma	Sony
Name	Sigma 50mm ƒ/1.4 EX DG HSM	Sony 50mm f/1.4 ZA SSM Carl Zeiss Planar T*
Weight (g)	505	518
Aperture (f)	1.40 - 16.00	1.40 - 22.00
Diaphragm Blades	9	9
Diaphragm Blades Type	rounded	circular
Lens Construction	8 elements in six groups, 1 aspherical lens element	8 elements in 5 groups, with 2 aspherical elements
Diameter (mm)	68.2	81
Focus Details	HSM, with full-time manual focus override	Rear-focus, with SSM (Super Sonic wave Motor); Direct Manual Focus; Focus Hold Button