The silver VF-3 Electronic Viewfinder for Select Olympus PEN Cameras from Olympus is for use with most Olympus PEN digital cameras. It is powered via the camera's accessory port and attaches to its hot shoe. The VF-3 can be used indoors or outdoors and is particularly beneficial when capturing images in direct sunlight which could make viewing the camera's LCD display very difficult. It has a quick refresh rate to Minimize ghosting on fast-moving subjects.\n\n\nThe viewfinder has a 1.00x magnification factor and has built-in diopter adjustment for easy viewing without or with eyeglasses. This viewfinder's Low Voltage Differential Signaling (LVDS) technology enables high-speed transfer of high-resolution images and aspherical lenses ensure high resolution from Centerto edge.\n\n\nPlus, the VF-3 can be positioned up to 90 degrees for composing shots at low or unusual angles. The brightness and contrast of the display can be adjusted up or down in seven increments via the VF-3's EVF ADJUST menu function.