Comparison of Nikon 50mm f/1.4G AF-S Nikkor and Sigma 56mm f/1.4 DC DN Contemporary

Attribute	Nikon 50mm f/1.4G AF-S Nikkor ×	Sigma 56mm f/1.4 DC DN Contemporary ×
Filter Size (mm)	58	55
Notes	Included Accessories: Bayonet hood HB-47, Flexible lens pouch CL-1013	Available AF Mounts: Canon EF-M, Micro Four Thirds, Sony E-mount; Compatible with Sigma's Mount Conversion Service
Closest Focus (m)	0.45	0.5
Magnification Ratio (x)	0.15	0.14
Type	Standard Prime	Telephoto Prime
Length (mm)	54	59.5
APS Equivalent	75mm	1.5x: 84mm; 2.0x: 112mm
Diagonal Angle of View (degree)	46.00	28.50
Image Circle	35mm	APS-C
Focal Length (mm)	50.00	56.00
Brand	Nikon	Sigma
Name	Nikon 50mm f/1.4G AF-S Nikkor	Sigma 56mm f/1.4 DC DN Contemporary
Weight (g)	280	280
Aperture (f)	1.40 - 16.00	1.40 - 16.00
Diaphragm Blades	9	9
Diaphragm Blades Type	rounded	rounded
Lens Construction	8 elements in 7 groups	10 elements in 6 groups, including 1 SLD and 2 asperical elements
Diameter (mm)	73.5	66.5
Focus Details	Silent Wave Motor (SWM), M/A (manual-priority autofocus) and M (manual focus)	Smooth and quiet AF with stepper motor