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Orion 07798 4.57-Inch ID Full Aperture Solar Filter (Black)

A must-have for safely observing the sun and sunspots without damaging your eyes
457 inch Inside diameter optical glass filter fits snugly over your telescopes front aperture to block 99999 of incoming sunlight for safe observation and astrophotography
Glass filter elements are machine-polished and triple-coated with nickel-chromium stainless steel and fits telescope tube diameters up to 025 inch smaller than specified size of 457 inch
Each Orion telescope solar filter includes three equidistant thumbscrews 4x 116 inch thick adhesive foam tabs and 4x 18 inch thick adhesive foam tabs for customized friction fit to your telescope
Note All Orion solar filters are designed for use with an adequate friction fit attachment Thumbscrews should ONLY be used to keep filter securely in place once a friction fit has been achieved