Canon EF-S EFS 17-85mm f/4-5.6 IS USM Zoom Lens w/ Caps [Near MINT] Tested JAPAN
The aperture blades have also been checked and found to operate without any issues. Overview of the Canon EF-S 17-85mm f/4-5.6 IS USM Lens USM (Ultrasonic Motor) Enables fast and quiet autofocus operation.