Feature Ultra-compact Pancake The portability of the pancake lens makes it easy to carry. The compact and exquisite design is perfect for traveling and creating. STM Stepping Motor TTArtisan AF 27mm F2.8 lens adopts the "STM+leading screw" stepping motor, which is small in size and smooth in focusing. Eye Recognition Focus Accurate and agile eye tracking makes it easy to capture wonderful moments when taking photos, and helps to shoot smooth images when recording videos. 0.35m Close-up Shooting The closest focus distance is 0.35m to capture every detail. And with a large aperture of F2.8, the non-focus area has fantastic bokeh. Clicked Aperture Ring The lens is designed with an independent clicked aperture, so you can have a more convenient and faster shooting experience than switching the aperture on the camera. Interface for Firmware Upgrade The firmware upgrade of the lens can be carried out through the type-c interface to improve the performance. Different from the common design of the interface on the lens, TTArtisan designs the interface on the back cap, which improves the aesthetics of the lens.