Celestron UV/Infrared Cutoff Filter (1.25")

The Celestron ultimate ultraviolet & infrared light blocker, featuring hard Ionbeam coatings and finely polished glass.  The ideal filter for NexImage and CCD imaging, it has an extremely sharp cutoff at 690nm yet leaves all the visible red-including the important 656nm H-alpha emission line.  It will prevent infrared wavelengths of light from blurring finer detail in your digital imagery.