Celestron 93653 A 1.25 Inch Visual Back Metal Adapter (Black)

A Visual Back Is A Metal Adapter That Screws Onto The Standard Rear Cell Threads Of Schmidt-Cassegrain And Maksutov-Cassegrain Telescopes And Accepts 1.25 Accessories, Including Diagonals, Eyepieces (For Straight-Through Viewing), Barlows, Webcams, And Any Other Accessory With A 1.25 Insert Barrel. All Celestron 5 , 6 , 8 , 9.25 And 11 Schmidt-Cassegrains Come Standard With The 1.25 Visual Back. To Use 2 Diagonals On A Celestron 5 - 11 Schmidt-Cassegrain, Remove The Visual Back And Thread On A 2 Diagonal Made Especially For Schmidt-Cassegrain Telescopes, Such As The Celestron 2 Xlt Diagonal (#93527).