User's Manual

Appendix D. iGuider for CEM40G

CEM40G has a built-in iOptron iGuider

guiding system. It includes a 30mm diameter and 120mm

focal length guiding scope and a Windows based driverless guiding camera.

1. Focus adjuster locking screw (2mm hex), 2.Focus adjuster, 3.Lens cover

The iGuider only support ASCOM guiding. Please follow mount computer control reference to

make sure that a proper iOptron Commander/ASCOM Drive is installed based on your mount

type. CEM40G/GEM45G and CEM70G uses different Commander/ASCOM Drive. Test the

mount computer control before setup the autoguiding.

1. Connect iGuider to a PC

The iGuider guiding system is connected internally to the mount main USB port. CEM40G is

connected to the USB2.0 port on the rear end of mount RA axle.

Connect the mount to a PC via a USB cable. Check your PC device list via Device Manager.

You should see an iOptron iGuider under the Camera.

2. Setup PHD2 Guiding

Download freeware PHD2 autoguiding software from https://openphdguiding.org/downloads/.

Please select V2.6.7 or later version.