Comparison of Sigma APO 70-200mm f/2.8 II EX DG Macro HSM and Tokina 80-200mm f/2.8 AT-X 828 AF PRO

Attribute	Sigma APO 70-200mm f/2.8 II EX DG Macro HSM ×	Tokina 80-200mm f/2.8 AT-X 828 AF PRO ×
Magnification Ratio (x)	0.29	-
Filter Size (mm)	77	77
Focus Details	Internal; HSM with full-time manual override	Rotating
Closest Focus (m)	1	1.8
Lens Construction	18 elements in 15 groups, including 3 ELD and 2 SLD elements	17 elements in 11 groups, including 1 SD element
Length (mm)	184.4	184
Focal Length (mm)	70.00 - 200.00	80.00 - 200.00
Diagonal Angle of View (degree)	12.30 - 34.30	12.30 - 30.30
Brand	Sigma	Tokina
Image Circle	35mm	35mm
Name	Sigma APO 70-200mm f/2.8 II EX DG Macro HSM	Tokina 80-200mm f/2.8 AT-X 828 AF PRO
Weight (g)	1370	1350
Type	Telephoto Zoom	Telephoto Zoom
Notes	Available AF Mounts: Canon, Nikon, Four-Thirds, Pentax, Sigma, Sony; Included Accessories: Case, Petal-type Hood (LH850-01), Tripod Collar (TS-21).	Available AF Mounts: Canon, Minolta, Nikon, Pentax; Included Accessories: Lens Hood, Fitted Soft Case
APS Equivalent	1.5x: 105 - 300mm; 1.6x: 112 - 320mm; 2.0x: 140 - 400mm	1.5x: 120 - 300mm; 1.6x: 128 - 320mm
Aperture (f)	2.80 - 22.00	2.80 - 32.00
Diaphragm Blades	9	-
Zoom System	Rotary with lock; Internal	Rotary
Diameter (mm)	86.5	84