User's Manual

For CEM70G, plug a USB cable into the USB3.0 port on the mount base panel to connect the

iPolar to a computer.

Figure 24. Connect CEM70G iPolar to a computer

For CEM70/CEM70EC, plug a USB cable into the iPolar port on the rear end of mount RA

axisto connect the iPolar to a computer.

Figure 25. Connect CEM70/EC iPolar to a computer

To perform polar alignment, please refer to Appendix C. It is simple and fast, even the pole star

or part of the sky is blocked. Steps are briefly outlined below:

 Download and install iPolar Software (first time use)

 Connect a USB cable between the iPolar port on the mount and a computer USB port

 Calibrate the iPolar Rotation Center (first time use)

 Start polar alignment by following on screen instructions

Polar Alignment Software

There are quite a few alignment software available or polar alignment, such as PHD2 guiding,

TheSky software, PemPro, or Alignmaster.

BrightStar Polar Alignment/Polar Iterate Align

BrightStar Polar Alignment allows you to polar align the mount even if you cannot view the

Celestial Pole.

(1) Level the CEM70 mount and set it at Zero Position. Make sure the telescope is parallel to

the pole axis (R.A. axis) of the mount. If a finder scope is used, adjust it to be parallel to the

telescope optical axis. Turn the mount power on.

(2) Pressing MENU=>“Alignment”=>“Polar Iterate Align”. The HC will display the azimuth and

altitude position of several bright stars near meridian. Select one that is visible with high

altitude as Alignment Star A. Follow the HC instruction to move the Star A to the center of

the eyepiece with the combination of Latitude Adjustment Knob and “◄” or “►” button.

Press ENTER to confirm. Next, select a bright star that is close to the horizon as the

Alignment Star B. Center it using the Azimuth Adjustment Knob and “◄” or “►” button (The

“▲” and “▼” buttons are not used here). Press ENTER to confirm.

(3) The telescope will now slew back to Star A to repeat above steps. The iteration can be

stopped when it is determined that the alignment error is at the minimum. Press BACK

button to exit alignment procedure.