Solar filters are absolutely essential for observing the sun safely with your telescope. Our star is so bright it can permanently damage both your eyes and the scope’s optics unless both are properly protected.
Whether using a telescope or binoculars, solar filters can help you view the Sun in its best possible light. A solar filter must be used on the lens throughout the partial phases for both photography and safe viewing. Solar filters block most of the sunlight to avoid any damage to the eyes. 
 
***Warning***
Observing the Sun without the proper protection may result in serious personal injury, including permanent eye damage and blindness, and/or damage to equipment. Never point an optic at the sun without an approved solar filter on the front of the optic.