After recording a video in Cinematic Mode, how can an editor fine-tune the intensity of the background blur effect?

After recording a video in Cinematic Mode, which captures depth information alongside the video, an editor can fine-tune the intensity of the background blur effect directly within the Photos app on the device where it was recorded, or in compatible video editing applications. Cinematic Mode's key feature is its ability to record a depth map, which is data identifying the distance of objects from the camera. This depth map allows for the post-capture adjustment of the depth of field, which is the range of distances in a scene that appear acceptably sharp. To adjust the blur, the editor opens the Cinematic Mode video in the Photos app and taps the "Edit" option. Within the editing interface, a control typically labeled with an 'f' followed by a number, representing the f-stop, will be present. The f-stop, or f-number, is a photographic term that simulates the aperture of a physical camera lens, which controls how much light enters the lens and, critically in this digital context, the depth of field. A lower f-stop number, such as f/2.0, simulates a wider aperture, resulting in a shallower depth of field and a more intense background blur. Conversely, a higher f-stop number, such as f/16, simulates a narrower aperture, leading to a deeper depth of field and a less intense, or more subtle, background blur. The editor adjusts the f-stop value using a slider to achieve the desired level of blur intensity, effectively changing the simulated aperture opening and the resulting depth of field effect.