Sony just held its Xperia event, introducing three new phones with two of them being full-fledged flagships - Xperia 1 III and Xperia 5 III. As before, the latter aims to appeal to users looking for something more compact without sacrificing anything in terms of user experience. The two phones have unique variable telephoto cameras that can switch between 70mm and 105mm, which equates to around 2.9x and 4.4x optical zoom. The shooter itself uses a 12MP 1/2.9" Sony sensor with f/2.3 or f/2.8 aperture depending on the focal length you use and optical image stabilization. Digital zoom can...
Source: https://www.gsmarena.com/sony_xperia_1_iii_and_5_iii_announced_with_revolutionary_cameras-news-48642.php