4K HDMI document camera with optical zoom. Supports 4K, 1080p, 720p, and XGA resolutions. Capture area: 420 x 315 mm. Optical zoom: 6.8. Interfaces: HDMI/USB. Supports USB flash drive for recording and video capture. Synchronous audio/video recording with the push of a button. The Lumens DC172 Ladibug document camera offers ultra-clear 4K UHD output resolution at 30 frames per second, displaying remarkably detailed images of any object in real-time without delays. The DC172 features an image rotation function, allowing users to rotate the image 90/180/270 degrees and quickly mirror or flip images. It also supports external storage via USB flash drive and a unique HDMI pass-through function that can relay an image from a PC directly to a display. With the exclusive PC-free solution, image annotations can be made, and menu settings can be controlled directly with a mouse. The unique joint-free gooseneck allows for a 360° viewing angle and is easy to use. With just one button press, you can capture, record, and playback presentation materials, achieving perfect image quality every time. The Lumens DC172 makes presentations and teaching more interactive and memorable for students in a collaborative 1:1 learning environment.