Adjusting your image with GUIFocusAllow to focus an object in the far / near distance, or automatically.Holding down [Far]/[Near] menu with the left mouse button, focus is activated.Click [Auto] menu to auto focus function.ZoomAllow to enlarge or reduce the image size.Holding down [Tele]/[Wide] menu with the left mouse button, zoom is activated.BrightAllow to open IRIS to increase the brightness or close IRIS to decrease the brightness.Holding down [Up]/[Down] menu with the left mouse button, lens iris is activated.