USBScope let your android device connect to USB WebCam or video capture card that support USB video class (UVC) via USB-OTG (on-the-go) adapter to connect with micro USB in smartphones or tablets and let view, take pictures and record video.

Need NOT root device.

This USBScope for USB camera has features as follows:
✔ Movie recording
✔ Camera resolution selections
✔ Still image capture
✔ Adjustable color parameters such as brightness, contrast, hue, sharpness, saturation
✔ Option to turn on/off microphone for video recording
✔ Pinch and zoom on preview
✔ View images