STAYING with smartphones, some great new models for photographers have appeared this year. Highlights include the Xiaomi 14 Ultra, which features a one-inch sensor and stepless variable aperture, from f/1.63 to f/4. Samsung launched the flagship S24 Ultra, with the usual impressive cameras. At the other end of the price scale, the Samsung Galaxy A55 shows cheap needn’t be nasty, offering a 50MP f/1.8 wideangle camera, 4K video recording, generous 6.6in screen and more. Other stand-outs in 2024 include the Vivo X100 Pro, with its exceptional macro performance, and the Google Pixel 9 Pro, a compact flagship that takes fantastic photos in most situations. While Apple got some flak for launching the iPhone 16 in September without all its new AI features actually ready, the company is still a force…