In the past, you could only take long exposure photos with an expensive DSLR camera. Now, you can use Photos to edit your Live Photos and add the long exposure effect. Here’s how you do it:
Step 1: Navigate to the Photos app and select the Live Photos album.
Step 2: Select the Live Photo you want and open it in the editing interface.
Step 3: Tap the Live Photos button at the top of the screen.
Step 4: Swipe up and select Long Exposure from the effects toolbar.
Step 5: To finish, select Done.