The STC Clip Astro Nightscape Filter for Olympus M43 camera bodies is a new and unique solution for cutting light pollution and retaining original colour of landscapes and cityscapes. Similarly, to Astro-Multispectra it utilises a superior colour coating design; however, unlike the Astro Multispectra it allows for 40% mercury and sodium light transmittance. They also minimise colour shift in your images and ensure a clear focus. The filter is easily attached just above the imaging sensor rather than the lens. It fits snuggly and stays secure after the lens is attached to the camera body.