Stylish and lightweight the sony e50mm f18 oss lens is a fast prime lens with a large f18 aperture designed to perfectly complement sonys e mount aps c compact system cameras the bright f18 aperture with shallow depth of field allows you to capture the detail and create a smooth background bokeh effect the built in optical steadyshot oss is ideal for taking atmospheric handheld portraits without flash in dim light direct manual focus disengages the af motor for precise fine manual foc