The document compares the Omnicam and Bluecam digital impression systems. Omnicam captures images continuously, does not require powder, has a patient counseling mode, and can take 3D scans in color, while Bluecam captures single images and requires powder. Both systems have a scanning accuracy of 20 microns, do not charge fees for using Sirona Connect, may have software upgrade fees, and can provide digital files within 0-5 minutes of scanning.