Comparison of Panasonic 50mm f/1.4 Lumix S Pro (S-X50) and Sigma 50mm ƒ/1.4 DG HSM Art

Attribute	Panasonic 50mm f/1.4 Lumix S Pro (S-X50) ×	Sigma 50mm ƒ/1.4 DG HSM Art ×
Filter Size (mm)	77	77
Notes	Dust/splash-resistant; Included Accessories: front and rear lens caps, lens hood, storage bag.	Supported AF Mounts: Canon EF, Nikon F, L-Mount, Sigma SA, Sony A, Sony E. Included Accessories: front and rear lens caps, soft case, lens hood (LH83
Closest Focus (m)	0.44	0.4
Magnification Ratio (x)	0.15	0.18
Type	Standard Prime	Standard Prime
Length (mm)	130	99.9
APS Equivalent	75mm	1.5x: 75mm; 1.6x: 80mm
Diagonal Angle of View (degree)	47.00	46.80
Image Circle	35mm (L-Mount)	35mm
Focal Length (mm)	50.00	50.00
Brand	Panasonic	Sigma
Name	Panasonic 50mm f/1.4 Lumix S Pro (S-X50)	Sigma 50mm ƒ/1.4 DG HSM Art
Weight (g)	955	810
Aperture (f)	1.40 - 16.00	1.40 - 16.00
Diaphragm Blades	11	9
Diaphragm Blades Type	circular	rounded
Lens Construction	13 elements in 11 groups, including 2 aspherical and 3 ED elements; Fluorine coating on front element.	13 elements in 8 groups, including 1 aspherical and 3 SLD elements
Diameter (mm)	90	85.4
Focus Details	Internal AF; Double focus system combining linear and stepping motor; AF/MF clutch mechanism	HSM, with full-time manual focus override