When Tokina presented this product it was the outset developing zoom lens of the world and they came across to the unknown photo-world to seek something new. Excellent operability based on human engineering. Exercise the power of this lens in flash photography as its constant aperture. To cover several wide angle lenses in one. As being able to close to an object at 0,4m, enjoy full utility of wide angle view most effectively. Available to shoot quick action “in an instantenious movement” by adopting quick zooming system. Practical zoom lens for any objects especially for snaps, documentaries, groups and so forth.