Optoma DC300I User Manual - Page 11

9. FEATURES LIGHT The DC300i uses eco-friendly, low power LED lamps which are cool to the touch and mercury free. Due to the excellent sensitivity of the camera the lamp requires seldom use. Adjusting the light balance from the remote control can often provide clear vivid images ZOOM IN AND ZOOM OUT 9x optical zoom combined with 12x seamless digital zoom. The DC300i enables you to view items in immense detail. DC300i's advanced optical system features high speed auto focus capability that ensures instant auto focus when you quickly zoom in and out of any object. You can also manually adjust focus to satisfy any special viewing needs by pressing "ZOOM+"or － "ZOOM ". FOCUS ADJUSTMENT When the Visualiser is turned on the focus automatically adjusts, it is not necessary to re-adjust the focus if you are only working with flat materials (text, photos, etc.). Only 3D objects require a focus adjustment. Press the "AUTO" button to auto focus. Press the "FOCUS+", or "FOCUS-"button once to focus manually. This function is accessible from the remote control and the base unit. BRIGHTNESS ADJUSTMENT You can adjust the camera brightness by pressing the "BRIGHT +" or "BRIGHT -" button. This function is only accessible from the remote control 11