I was out this evening to take photos with my new iPhone 15ProMax and compare with my 14ProMax. I usually start the camera opwith correct settings, ie nightmode on, 10 seconds and the take photo. No matter what I did the 15 gave me bad focus all the time. It focuses fine during the day. I took about 10 photos with each and all photos taken with 14 came out well but none of the 15 pro max.
iPhone 14 pro max:
iPhone 15 pro max:
iPhone 14 pro max:
iPhone 15 pro max: