... report outportImage acquisition device: Digital SLR camera(CANON EOS series)Viewfinder: Microscope eyepiece, camera viewfinder, camera LCD, computer screenTransmission interface: USBPower ... continuousLight source: 6v/20w halogen incandescent light bulbSlit image radial range: 0~180°Filters: Heat aborption,grey,redfree(green),cobalt ... Capture System Digital Slit Lamp 5 Mag.6x~40x, w/o Digital Camera