FUJIFILM XC 13-33mm f/3.5-6.3 OIS Lens (White Box) Short Description APS-C f/3.5 to f/6.3 20-50mm (Full-Frame Equivalent) STM Autofocus 7.9' Close Focus 4 Stops of Optical Image Stabilization 9-Blade Iris Soft Natural Backgrounds Compact 1.5'-Long Design 49mm Front Filter Thread