I have barely used this Canon EF mount lens, so it has sat quietly in my padded lens bag. It has an aperture range of f/2-22 with Optical Image Stabilisation, an Ultrasonic Auto-Focus Motor, with manual focus override. It also has low speed focus drive for videoing. I have also included a brand new set of 3-piece Macro Extensions, 13mm, 31mm &21mm. These extension tubes enable a lens to focus closer than its normal set minimum focusing distance. They are exceptionally useful for Macro photography, enabling you to convert almost any lens into a macro lens. They can be used individually, or combined.