Bright high-end OLED viewfinder for 4K/HD system cameras and camcorders, with additional sub-LCD display, The HDVF-EL20 is a 0.7-inch (viewable area, measured diagonally) full HD OLED viewfinder, which enables quick pixel response for tracking and focusing on moving objects. It delivers outstanding high contrast and a wide dynamic range thanks to the use of revolutionary Organic Light Emitting Diode (OLED) display technology.