In the recent iPhone presentation, they talked about the "48mp Fusion Camera" where they had the main camera image pipeline "fused" with an image optimized for light capture. In which it groups every 4 pixels into a larger pixel, "fuses" it with the larger 48mp image and makes a 24mp image. Is this a brand new thing, or has this existed in the iPhone Pro 15 already? I cannot tell if it's.a marketing name change or if it's a brand new thing for all these new cameras.