Comparison of Nikon 28mm f/1.8G AF-S Nikkor and Sigma 35mm f/2 DG DN Contemporary

Attribute	Nikon 28mm f/1.8G AF-S Nikkor ×	Sigma 35mm f/2 DG DN Contemporary ×
Filter Size (mm)	67	58
Notes	Nano Crystal Coat; Super Integrated Coating	Available AF Mounts: L-Mount, Sony E-Mount
Closest Focus (m)	0.25	0.27
Magnification Ratio (x)	0.22	0.18
Type	Wide Prime	Wide Prime
Focus Details	AF-S (Silent Wave Motor) AF with with MA / M switch	Smooth, quiet and high-speed AF via stepping motor
APS Equivalent	42mm	1.5x: 52.5mm
Diameter (mm)	73	70
Image Circle	35mm	35mm
Focal Length (mm)	28.00	35.00
Brand	Nikon	Sigma
Name	Nikon 28mm f/1.8G AF-S Nikkor	Sigma 35mm f/2 DG DN Contemporary
Weight (g)	330	325
Aperture (f)	1.80 - 16.00	2.00 - 22.00
Diaphragm Blades	7	9
Diagonal Angle of View (degree)	75.00	63.40
Length (mm)	80.5	65.4
Diaphragm Blades Type	-	rounded
Lens Construction	11 elements in 9 groups, including 2 aspherical elements	10 elements in 9 groups, with 1 SLD glass and 3 aspherical lenses