Comparison of Nikon 28mm f/1.4E ED AF-S Nikkor and Sigma 24mm f/1.4 DG HSM Art

Attribute	Sigma 24mm f/1.4 DG HSM Art ×	Nikon 28mm f/1.4E ED AF-S Nikkor ×
Filter Size (mm)	77	77
Notes	Available AF Mounts: Canon EF, L-Mount, Nikon F, Sigma SA and Sony E; Compatible with Sigma's USB Dock and Mount Conversion Service	Weather-sealed against dust and water drops
Closest Focus (m)	0.25	0.28
Magnification Ratio (x)	0.19	0.17
Type	Wide Prime	Wide Prime
Length (mm)	90.2	100.5
APS Equivalent	1.5x: 36mm; 1.6x: 38.4mm	42mm
Diagonal Angle of View (degree)	84.10	75.00
Image Circle	35mm	35mm
Focal Length (mm)	24.00	28.00
Brand	Sigma	Nikon
Name	Sigma 24mm f/1.4 DG HSM Art	Nikon 28mm f/1.4E ED AF-S Nikkor
Weight (g)	665	645
Aperture (f)	1.40 - 16.00	1.40 - 16.00
Diaphragm Blades	9	9
Diaphragm Blades Type	rounded	rounded
Lens Construction	15 elements in 11 groups, including 3 FLD, 4 SLD and 2 aspherical elements	14 elements in 11 groups, including 3 aspherical and 2 ED elements; Flourine Coat; Nano Crystal Coat
Diameter (mm)	85	83
Focus Details	HSM (Hypersonic Motor) with full-time manual focus override	Rear Focusing (RF) System with Silent Wave Motor (AF-S); MA/M switch