In 1967 Lockheed donated a solar filter to the Society.

Polarizing filters adjust the brightness of images to a better level for observing, but much less so than solar filters.

Polarizing filters should not be used in place of solar filters designed specially for observing the sun.

Telescopes and binoculars should be equipped with special undamaged solar filters.

During the day, sidewalk astronomy often includes use of a solar filter on the telescope to allow people to view the sun.

During the day, schoolchildren came and viewed the sun through solar filters.

Only properly designed and certified solar filters should be used for direct viewing of the Sun's disk.

He made 44 exposures on a single frame of film all taken from the same location with a solar filter.

When we mix our coffee pigment with it, it's like adding a solar filter.

Tomorrow, therefore, viewers will need special eye protection in the form of properly designed solar filters.