Apple CEO Ternus teases variable aperture camera for iPhone 18 Pro Max

New Apple CEO John Ternus posted a second teaser on X hinting at the iPhone 18 Pro Max's variable aperture camera, expected to be revealed at today's event. The 14-second video shows a spotlight narrowing onto curved glass, suggesting camera-related technology. Variable aperture allows an adjustable iris to change light intake, altering focus and depth of field for accurate blur. This contrasts with current smartphone fixed apertures, which rely on software-based fake bokeh that often struggles with fine details like hair or glass. The feature would enable true optical portrait photography on iPhones, replacing computational blur. Ternus's tease follows typical pre-event marketing, with full details expected within hours.