Lenses comparison


Manufacturer	Sigma	Sigma	Nikon Nikkor	Canon
Model	30 mm f/1.4 EX DC HSM	50 mm f/1.4 EX DG HSM	AF-S 50 mm f/1.4G	EF 50 mm f/1.4 USM
Lenst style	Normal	Normal	Normal	Normal
Focal length	30 mm	50 mm	50 mm	50 mm
Maximum aperture	f/1.4	f/1.4	f/1.4	f/1.4
Angle of view	45 ^o	46.8 ^o	46 ^o	46.8 ^o
Closest focusing distance	0.4 m	0.45 m	0.45 m	0.45 m
Maximum magnification	1:10.4	1:7.4	1:6.5	1:6.67
Minimum aperture	16	16	16	22
Diaphragm blades	8	9	9	8
Auto focus type	AF HSM	HSM	SWM	USM
Lens Construction	7 elements / 7 group	8 elements / 6 group	8 elements / 7 group	7 elements / 6 group
Filter diameter	62 mm	77 mm	58 mm	58 mm
Macro Yes/No	No	No	No	No
Stabilization	No	No	No	No
Available mounts	Nikon F Sony A / Minolta Sigma Pentax K Four Thirds Canon EF-S	Canon EF Nikon F Sony A / Minolta Sigma Pentax K Four Thirds	Nikon F	Canon EF
Dimensions	76.6 x 59 mm	68.2 x 84.5 mm	73.5 x 54.2 mm	73.8 x 50.5 mm
Weight	430 g	505 g	290 g	290 g
Additional information	2 SLD elements and 1 hybrid aspherical lens	If the Sony or Pentax camera body does not support HSM, auto focus will not be available.		Marketed June 1993
Score [max 5.00]	4.21 (11)	4.33 (18)	4.04 (8)	3.73 (20)
Our Review	Review	Review	Review	Review