How does backlash look like and how to get rid of it?
Backlash looks like a little arm which comes out of every star on the whole frame and points everywhere into the same direction.
Here a complete APS-C picture with backlash. Just zoom in:
Depending on your exposure time, you can see backlash (if you got any) on every few or even every single frame. If so, you should google a bit to find a way to get backlash eleminated on your mount.
Get rid of backlash on the HEQ5-Pro
I own the Skywatcher HEQ5-Pro mount and had some backlash in spring 2022. While looking for a solution I found 2 awesome how-to videos on the video-blog page of “FROSTH ASTROPHOTOGRAPHY” where Marten explains how to eleminate the problem on the HEQ5-Pro:
- SkyWatcher HEQ5 Pro backlash adjustment p1 – Frosth Astrophotography
- SkyWatcher HEQ5 Pro backlash adjustment p2 – Frosth Astrophotography
I did exactly what he explained and my backlash was gone!
There are other how-to videos out there for other mounts.