NEWS YOU CAN USE: How to manage the iPhone camera’s AI effects your way. “You can easily bypass those features by using a third-party app such as Halide or Camera+, which can shoot using manual controls and save the images in JPEG or raw format. Some of the apps’ features can take advantage of the iPhone’s native image processing, but you’re not required to use them. The only manual control not available is aperture because each compact iPhone lens has a fixed aperture value. That fixed aperture is also why the iPhone includes Portrait Mode, which detects the subject and artificially blurs the background to simulate the soft background depth of field effect created by shooting with a bright lens at f/1.8 or wider. The small optics can’t replicate it, so Apple (and other smartphone developers) turned to software to create the effect.”