Introducing the Khronos Magnetic 58mm Variable ND Filter (1-5 Stops)This Variable Neutral Density gives users more control when adjusting the exposure of their iPhone. This allows users to reduce light visible to the sensor, allowing you to keep your shutter speed consistent when shooting in brighter lighting environments like daylight.The Variable design of this filter allows users to adjust between 1 and 5 stops which makes getting perfect exposure faster. It also supports creative applications when moving between darker or brighter environments. The magnetic connection makes it easy to snap on and off of the Khronos 58mm Filter Tray for iPhone 17 Pro/Pro Max.