Measuring the tracking error / worm error with TDM

We frequently receive inquiries as to whether we can test the accuracy of a mount. We offer this service for the following mounts:

- Celestron AVX

- Celestron CGX

- Skywatcher HEQ5

- CEM25

- CEM 26

- CEM 28

- CEM 40

- CEM 70

- CEM120

- GEM45

- other mounts on request

If the periodic screw error is worse than it should be, in many cases we can help by modifying or repairing it. This can greatly improve the tracking accuracy of the mount in some cases.

Simply click on "Contact customer service"!