Comparison of Nikon 17-35mm f/2.8D ED-IF AF-S Nikkor and Tokina 14-20mm f/2 AT-X 142 AF PRO DX SD

Attribute	Nikon 17-35mm f/2.8D ED-IF AF-S Nikkor ×	Tokina 14-20mm f/2 AT-X 142 AF PRO DX SD ×
Filter Size (mm)	77	82
Notes	Included Accessories: HB-23 Hood, CL-76 Case	Available AF Mounts: Canon and Nikon Digital Only; Built-in AF motor for use with all Nikon DSLRs; Included Accessories: BH-823 Lens Hood
Closest Focus (m)	0.3	0.28
Magnification Ratio (x)	0.22	0.12
Type	Wide Zoom	Wide Zoom
Length (mm)	107	106
APS Equivalent	26 - 53mm	1.5x: 21 - 30mm; 1.6x: 22.4 - 32mm
Zoom System	Rotary	Rotary
Image Circle	35mm	APS-C
Focal Length (mm)	17.00 - 35.00	14.00 - 20.00
Brand	Nikon	Tokina
Name	Nikon 17-35mm f/2.8D ED-IF AF-S Nikkor	Tokina 14-20mm f/2 AT-X 142 AF PRO DX SD
Weight (g)	746	725
Aperture (f)	2.80 - 22.00	2.00 - 22.00
Diaphragm Blades	9	9
Diagonal Angle of View (degree)	62.00 - 104.00	71.80 - 91.70
Lens Construction	13 elements in 10 groups, including 3 aspherical and 2 ED elements	13 elements in 11 groups, including 3 aspherical and 4 SD elements
Diameter (mm)	81	89
Focus Details	Internal; SWM with M/A switch for fast transitions between AF and MF	Internal with One-Touch Focus Clutch mechanism