Celestron 1.25'' Visual Back Barlow Eye Relief: 13 mm

Eye Relief: 13 mm

including iPhone 6 and up and most devices running Android 7

Illuminated double-crosshair reticle doesn’t hide stars

while the box itself is rotated on a base in azimuth

5" Stainless Steel Pipe Tripod with Accessory Tray

Celestron 1.25'' Visual Back Barlow Eye Relief: 13 mmA 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, 11 and 14" Schmidt Cassegrains come standard with the 1. 25 Visual Back. To use 2 diagonals on a Celestron 5 11 Schmidt