This Ambico 7723 filter is a great addition to your camera equipment. Its square shape and clear color make it perfect for use as a parallel prism multi-image filter. The 76x76 mm size is ideal for drop-in mounting, and the filter is made in the United States. The filter's effects include a unique parallel prism design that can improve the quality of your images. It is suitable for use with a variety of cameras and lenses, making it a versatile addition to your collection. The manufacturer warranty is none, and it is not a custom bundle. This filter is a must-have for any photographer looking to enhance their photography skills.