An updated classic, designed for more intuitive and interactive use, the Tokina atx-i 11-20mm f/2.8 CF is an ultra-wide zoom that is ideal for landscape, architecture, interior, and astrophotography applications. Its bright f/2.8 constant maximum aperture affords consistent brightness throughout the zoom range and benefits working in available lighting conditions. The focus is driven by Lens AF motor (non-ultrasonic), it does not have image stabilization.