Comparison of Nikon 35mm f/1.4 AIS Nikkor and Sigma 17-50mm ƒ/2.8 EX DC OS HSM

Attribute	Sigma 17-50mm ƒ/2.8 EX DC OS HSM ×	Nikon 35mm f/1.4 AIS Nikkor ×
Aperture (f)	2.80 - 22.00	1.40 - 16.00
Filter Size (mm)	77	52
Notes	Image Stabilized (except for Pentax and Sony mounts). Available AF Mounts: Canon, Nikon, Pentax, Sigma, Sony. Included Accessories: Case, Petal-type	Classic Nikon F Mount; AIS / AI / NAI Metering Compatibility; Includes front and rear lens caps.
Closest Focus (m)	0.28	0.3
Magnification Ratio (x)	0.2	0.18
Diaphragm Blades Type	rounded	-
Type	Standard Zoom	Wide Prime
APS Equivalent	1.5x: 26 - 75mm; 1.6x: 27 - 80mm	52.5mm
Diaphragm Blades	7	9
Image Circle	APS-C	35mm (FX)
Focal Length (mm)	17.00 - 50.00	35.00
Brand	Sigma	Nikon
Name	Sigma 17-50mm ƒ/2.8 EX DC OS HSM	Nikon 35mm f/1.4 AIS Nikkor
Weight (g)	565	399
Diagonal Angle of View (degree)	27.90 - 72.40	62.00
Lens Construction	17 elements in 13 groups, including 2 FLD glass elements	9 elements in 7 groups
Diameter (mm)	83.5	68.6
Length (mm)	91.8	60.9
Zoom System	Rotary with lock	-
Focus Details	Internal, with Hyper-Sonic Motor; AF/MF switch	Manual Focus Only; Close Range Correction