OnePlus is building up anticipation for its next compact flagship, the OnePlus 15T, and the latest official teasers suggest a notable camera improvement over its predecessor. A OnePlus executive from China has just dropped more hints about this device, revealing upgrades to the design and imaging system. In a recent Weibo post, Li Jie Louis, the President of OnePlus China, confirmed that the company is bringing the new LUMO periscope telephoto lens for the upcoming OnePlus 15T. Being based on the LUMO imaging system, this should translate to improved long-range shooting and portrait performance compared to its previous generation. The OnePlus 13T’s basic 2x telephoto shooter was a little disappointing last year, but the new periscope lens likely means higher zoom levels. The teaser also highlights some updates to the front as well. OnePlus’ next compact phone is getting ultra-narrow bezels just like its larger sibling, the OnePlus 15.…