Comparison of Olympus 7-14mm f/4 Zuiko Digital and Tokina 16-28mm f/2.8 FF Opera

Attribute	Tokina 16-28mm f/2.8 FF Opera ×	Olympus 7-14mm f/4 Zuiko Digital ×
Diagonal Angle of View (degree)	76.90 - 107.10	75.00 - 114.00
Zoom System	Rotary	Rotary
Notes	Available AF Mounts: Canon EF, Nikon F; Included Accessories: lens cap, fixed petal type hood.	Includes Lens Case (LSC-1022); Compatible with TC-14 Teleconverter
Aperture (f)	2.80 - 22.00	4.00 - 22.00
Type	Wide Zoom	Wide Zoom
Magnification Ratio (x)	0.19	0.11
Diaphragm Blades	9	7
APS Equivalent	1.5x: 24 - 42mm; 1.6x: 25.6 - 44.8mm	-
Image Circle	35mm	Image Circle
Focal Length (mm)	16.00 - 28.00	7.00 - 14.00
Brand	Tokina	Olympus
Name	Tokina 16-28mm f/2.8 FF Opera	Olympus 7-14mm f/4 Zuiko Digital
Weight (g)	940	780
Diameter (mm)	89	86.5
Lens Construction	15 elements in 13 groups, including 3 SD and 3 aspherical elements	18 elements in 12 groups, including aspherical elements and ED/Super ED elements
35mm Equivalent	-	14 - 28mm
Length (mm)	133.5	119.5
Focus Details	Internal with SD-M (Silent Drive Module) DC motor; One-Touch Focus Clutch Mechanism	-
Closest Focus (m)	0.28	0.25