LG Innotek has unveiled a continuous telephoto zoom for smartphones - The Verge
iPhone 13 Pro Telephoto Zoom Lens - SANDMARC
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Camera MF Super Telephoto Zoom Lens F/8.3 16 420 800mm T Mount with Universal 1/4 Thread for Canon Nikon Sony Fujifilm Olympus|Camera Lens| - AliExpress
Amazon.com : 22X Telephoto Telescope, Universal 4K HD Phone Telephoto Lens Smartphone Zoom Camera Lens Kit Easy to Carry Telescope Cell Phone Zoom Lens : Electronics
Battle of Biggest Zoom Lenses Ever for Photography