Comparison of Sony 24-70mm f/2.8 ZA SSM II Zeiss Vario-Sonnar T* SAL2470Z2 and Tokina 24-70mm f/2.8 AT-X PRO FX SD

Attribute	Tokina 24-70mm f/2.8 AT-X PRO FX SD ×	Sony 24-70mm f/2.8 ZA SSM II Zeiss Vario-Sonnar T* SAL2470Z2 ×
Notes	Available AF Mounts: Canon EF, Nikon F	For Sony A-Mount; Dust- and moisture-resistant; Included Accessories: ALC-SH101 petal lens hood
Magnification Ratio (x)	0.21	0.25
Filter Size (mm)	82	77
Length (mm)	107.5	111
Closest Focus (m)	0.38	0.34
Diagonal Angle of View (degree)	34.49 - 84.20	34.00 - 84.00
Focus Details	SDM; Internal with Focus Clutch mechanism	Internal; Super Sonic wave Motor (SSM) with AF/MF switch and focus hold; ~4x the subject tracking speed of the previous model
Focal Length (mm)	24.00 - 70.00	24.00 - 70.00
APS Equivalent	1.5x: 36 - 105mm; 1.6x: 38.4 - 112mm	36 - 105mm
Brand	Tokina	Sony
Image Circle	35mm	35mm
Name	Tokina 24-70mm f/2.8 AT-X PRO FX SD	Sony 24-70mm f/2.8 ZA SSM II Zeiss Vario-Sonnar T* SAL2470Z2
Weight (g)	1010	974
Type	Standard Zoom	Standard Zoom
Aperture (f)	2.80 - 22.00	2.80 - 22.00
Diaphragm Blades	9	9
Diaphragm Blades Type	-	rounded
Lens Construction	15 elements in 11 groups, including 3 all-glass molded aspherical and 3 super low dispersion (SD) glass elements	17 elements in 13 groups, including 2 aspheric and 2 extra-low dispersion elements; T* coating
Zoom System	Rotary	Rotary
Diameter (mm)	89.6	83