Image orientation is also an issue. The adapter, like any other lens, flips the image upside-down. To help address this issue while filming, an external monitor such as a small LCD screen may be mounted upside down to view the image in its correct orientation. Some LCD screens feature both mirror and flip options that correctly orient the image (flip vertically and mirror horizontally). In either case, the actual recorded footage must still be rotated 180 degrees in post-production. The one exception to this is the option to mount the camera upside down. This will allow the camera to record an upright image. However the camera LCD will still flip the image, and an external LCD monitor is still required.