There are few telescope accessories that work as hard or matter as much as a diagonal. An integral part of the optical chain,
...The Celestron 1.25" Star Diagonal slides into the 1.25" focuser of your refractor or catadioptric telescope and accepts standard 1.25" eyepieces. This allows you to view objects more comfortably with a diagonal that is angled at 90
The Celestron 1.25" Star Diagonal slides into the 1.25" focuser of your refractor or catadioptric telescope & accepts standard 1.25" eyepieces. This means that you can view objects more comfortably with a diagonal that is angled at 90