To change how much blur is behind a person in Cinematic Mode *afteryou have already recorded the video, what specific setting can you adjust?

To change how much blur is behind a person in Cinematic Mode after you have already recorded the video, you need to adjust the Depth control. This specific setting is typically found within the video editing interface of the Photos app on your device, accessible by tapping 'Edit' on the Cinematic Mode video. The Depth control allows you to manipulate the *depth effect*, which is the degree of selective blur applied to the background or foreground of a video to emphasize the subject. This effect is also known as *bokehor *depth of field*. Cinematic Mode uniquely records *depth informationalongside the visual footage, meaning it captures data about the distance of objects from the camera. This recorded depth information is what enables you to alter the blur amount post-recording. The Depth control is commonly represented by an 'f' icon or a slider labeled 'Depth' or 'Aperture'. Moving this slider adjusts the simulated *aperture*, which in traditional photography refers to the opening in the lens that controls the amount of light and the depth of field. In Cinematic Mode, adjusting the simulated aperture changes the *f-numberor *f-stop*. A lower f-number value, for example f/2.0, increases the amount of background blur, creating a shallower depth of field and making the subject stand out more. Conversely, a higher f-number value, such as f/16, decreases the background blur, resulting in a deeper depth of field where more of the background appears in focus.