|
Allan, it is fairly easy using the following method:
1. take the RCC1/camera assembly out and measure the distance of the mirror focal plane from the OTA surface using a sheet of paper to find where the focal plane is (use a distant target like the moon).
2. put the RCC1/camera assembly in the focuser where you want them to be in use and then measure the distance from the OTA surface to the camera focal plane (the camera specs should tell you how far back the FP is from the camera faceplate).
3. the difference between the two measures is the amount you need to move the mirror up.
|