While the iPhone 12 series announcement was less than a month ago, noted Apple analyst Ming-Chi Kuo is now focusing his attention on the next generation of iPhones. In his latest note, he says the iPhone 13 series will once again come in 4 varieties. The Pro models in particular are in for a camera upgrade with an F/1.8 6P ultrawide lens with autofocus. This should translate to noticeable improvements in quality compared to the 12 Pro and 12 Pro Max which use F/2.4, 5P fixed focus ultrawide modules. There’s still no word what camera upgrades we'll see on the more affordable iPhone...
Source: https://www.gsmarena.com/mingchi_kuo_iphone_13_pro_and_pro_max_will_debut_f_18_ultrawide_lens_with_6p_and_autofocus-news-46163.php