Comparison of Nikon 105mm ƒ/1.4E ED AF-S Nikkor and Sigma 135mm ƒ/1.8 DG HSM Art

Attribute	Sigma 135mm ƒ/1.8 DG HSM Art ×	Nikon 105mm ƒ/1.4E ED AF-S Nikkor ×
Filter Size (mm)	82	82
Notes	Available AF Mounts: Sigma SA, Canon EF, L-Mount, Nikon F, Sony E; Dust- and splash-proof construction; Compatible with Mount Converter MC-11	Dust and moisture resistant
Closest Focus (m)	0.88	1
Magnification Ratio (x)	0.2	0.13
Type	Telephoto Prime	Telephoto Prime
Length (mm)	114.9	106
APS Equivalent	1.5x: 202.5mm; 1.6x: 216mm	157.5mm
Diagonal Angle of View (degree)	18.20	23.20
Image Circle	35mm	35mm
Focal Length (mm)	135.00	105.00
Brand	Sigma	Nikon
Name	Sigma 135mm ƒ/1.8 DG HSM Art	Nikon 105mm ƒ/1.4E ED AF-S Nikkor
Weight (g)	1130	985
Aperture (f)	1.80 - 16.00	1.40 - 16.00
Diaphragm Blades	9	9
Diaphragm Blades Type	rounded	rounded
Lens Construction	13 elements in 10 groups	14 elements in 9 groups, including 3 ED elements; Nano Crystal Coat; Fluorine coatings on front and rear elements
Diameter (mm)	91.4	94.5
Focus Details	Internal with HSM (Hypersonic Motor) with limiter and full-time manual override	Internal focusing with Silent Wave motor; M/A-M switch