Sky Mentor 45º Image Erect Diagonal - 1.25" - 45IE-125 Baader Hyperions Just like using an umbrella

Just like using an umbrella to keep off the rain

Built-in ST-4 autoguiding port

25" focuser (or focuser adapter) of your telescope and then use eyepieces as normal

This 40mm diameter highly portable dedicated solar telescope features completly internal non-removable and student safe solar filtering optics with a 1

The Celestron Universal Plate attaches to the mounting platform of your CGE equatorial mount

Sky Mentor 45º Image Erect Diagonal - 1.25" - 45IE-125 Baader Hyperions Just like using an umbrellaSky Mentor 45 Erecting Diagonal 1. 25" An image erect diagonal is really nice to have if you want to use your telescope terrestrially as a spotting scope! Out of the box, most astronomical telescopes produce a mirror image. Astronomers do not bother to correct this image when looking at or photographing the sky, as doing so adds another bounce of light that lowers image brightness a bit. However, image brightness is normally not a concern during the