The filter improves visible contrast and detail on fewer objects and requires longer CCD exposures. Completely blocks ultraviolet light and most visible light. Transmittance of light begins in the deep red 700nm and continues to the CCD's detection limit. Near-infrared light can pass thru nebula dust clouds, and CCDs can reveal the buried stars. Used with both cameras.
Visible light is transmitted with high efficiency.
Used with Starlight Xpress MX5-C to preserve chromatic accuracy, help colour balance and colour rendering.