Comparison of Panasonic 42.5mm ƒ/1.2 ASPH Power O.I.S. Leica DG NOCTICRON and Sigma 50mm ƒ/1.4 EX DG HSM

Attribute	Sigma 50mm ƒ/1.4 EX DG HSM ×	Panasonic 42.5mm ƒ/1.2 ASPH Power O.I.S. Leica DG NOCTICRON ×
Diagonal Angle of View (degree)	47.00	29.00
Aperture (f)	1.40 - 16.00	1.20 - 16.00
Diaphragm Blades Type	rounded	rounded
Filter Size (mm)	77	67
Notes	Supported AF Mounts: Canon, Four-Thirds, Nikon, Pentax, Sigma, Sony. * If the camera body does not support HSM, autofocus will not be available.	Image Stabilized; Aperture Ring; Included Accessories: lens hood, storage bag
Focus Details	HSM, with full-time manual focus override	-
Type	Standard Prime	Telephoto Prime
Diaphragm Blades	9	9
Lens Construction	8 elements in six groups, 1 aspherical lens element	14 elements in 11 groups, including 1 ED, 1 UHR and 2 aspherical elements
Image Circle	35mm	Image Circle
Focal Length (mm)	50.00	42.50
Brand	Sigma	Panasonic
Name	Sigma 50mm ƒ/1.4 EX DG HSM	Panasonic 42.5mm ƒ/1.2 ASPH Power O.I.S. Leica DG NOCTICRON
Weight (g)	505	425
Diameter (mm)	68.2	74
Length (mm)	84.5	76.8
35mm Equivalent	-	85mm
Magnification Ratio (x)	0.14	0.1
APS Equivalent	1.5x: 75mm; 1.6x: 80mm	-
Closest Focus (m)	0.45	0.5