6"x6" Solar Filter Sheet for Telescopes, Binoculars and Cameras Silver-black polymer is the most common filtering material for observing sunspots and granulation, through telescopes and binoculars Make a filter on your own for any telescope / binoculars / camera, and for a fraction of what factory made filters cost. The sun will appear in a natural orange color when viewed through your telescope using this filter. WARNING: ALWAYS MAKE SURE THE FILTER IS WELL ATTACHED TO THE TELESCOPE/BINOCULARS, USING STICKY TAPE, TO KEEP IT FROM FALLING WHILE OBSERVING.