Comparison of Nikon 28-70mm f/2.8 ED-IF AF-S Nikkor and Tokina 28-80mm f/2.8 AT-X 280 AF PRO

Attribute	Nikon 28-70mm f/2.8 ED-IF AF-S Nikkor ×	Tokina 28-80mm f/2.8 AT-X 280 AF PRO ×
Filter Size (mm)	77	77
Notes	Included Accessories: CL-74 case, HB-19 Hood	Available AF Mounts: Canon, Minolta, Nikon, Pentax; Included Accessories: Lens Hood, Fitted Soft Case
Closest Focus (m)	0.5	0.5
Magnification Ratio (x)	0.18	0.2
Type	Standard Zoom	Standard Zoom
Length (mm)	124	120
APS Equivalent	42 - 105mm	1.5x: 42 - 120mm; 1.6x: 44.8 - 128mm
Zoom System	Rotary	Rotary
Image Circle	35mm	35mm
Focal Length (mm)	28.00 - 70.00	28.00 - 80.00
Brand	Nikon	Tokina
Name	Nikon 28-70mm f/2.8 ED-IF AF-S Nikkor	Tokina 28-80mm f/2.8 AT-X 280 AF PRO
Weight (g)	887	819
Aperture (f)	2.80 - 22.00	2.80 - 22.00
Diaphragm Blades	9	9
Diagonal Angle of View (degree)	34.30 - 74.00	30.30 - 75.30
Lens Construction	15 elements in 11 groups, including 1 aspherical and 2 ED elements	16 elements in 12 groups, including 2 aspherical and 1 SD elements
Diameter (mm)	89	84
Focus Details	Internal; SWM with M/A switch for fast transitions between AF and MF	Internal with Focus Clutch mechanism