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Position the Telescope

Begin by pointing the telescope tube upward at about a 45-degree angle.   This allows you to safely 
remove the secondary mirror without the chance of it falling out.

Removing the Secondary Mirror

All Celestron Fastar-compatible telescopes are equipped with removable secondary mirror assemblies, 
allowing the easy removal of the secondary mirror for use with a Hyperstar lens or the Cool Edge. 
Simply rotate the outer ring around the secondary assembly counterclockwise to unthread it from the 
telescope.  The secondary mirror can now be lifted out of the telescope.

Placing the Mirror in the Cool Edge

Note the position of the notch in the top threaded ring of the Cool Edge and the matching set screw in  
the side of the secondary mirror housing.  Carefully set the mirror into the Cool Edge with the set screw 
in the notch.

Summary of Contents for Cool Edge

Page 1: ...astar compatible telescope By moving filtered air through the optical tube distorting tube currents and heat spikes are eliminated Included Items Cool Edge SCT Cooler AC or DC Adapter user selected Above Cool Edge for 14 Telescope No tools are necessary for the installation and use of the Cool Edge ...

Page 2: ...owing the easy removal of the secondary mirror for use with a Hyperstar lens or the Cool Edge Simply rotate the outer ring around the secondary assembly counterclockwise to unthread it from the telescope The secondary mirror can now be lifted out of the telescope Placing the Mirror in the Cool Edge Note the position of the notch in the top threaded ring of the Cool Edge and the matching set screw ...

Page 3: ...cope Again do not over tighten the cooler to avoid it being difficult to remove later Ventilating the Telescope The new Edge HD telescopes include rear cell vents to allow air to flow through the telescope tube Standard non Edge HD telescopes will require the back of the telescope to be open to allow air flow Simply remove the diagonal from the visual back of the telescope to let air move through ...

Page 4: ... telescope Unthread the retaining ring from the Cool Edge and lift out the secondary mirror There is a notch in the secondary holder on the front of the telescope to accept the set screw in the side of the secondary housing This retains the initial collimation of your telescope so there is no need to recollimate after using the Cool Edge Thread the retaining ring back onto the telescope and you ar...

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