 The capillary holder is inserted into a slot on the side of the device. To start the acquisition of a sequence of videos, the operator touches the camera button on the iPhone screen. A 5 second video is acquired. When the video is complete, the device automatically advances to the next field of view by translating the capillary. After this is repeated for 5 fields of view, the capillary is ejected from the device. Processing of the video completes within a few seconds, and the results of the test are displayed on the screen.