[Shiraz (Ray)]

You need to upgrade the focuser and get a camera adapter to make the scope work properly, whatever mount you have. Once you have the scope sorted out it should satisfy your imaging needs for many years to come, so it will not be wasted effort.

Suggest that you do not worry too much about the mount for now - until you get the the scope-camera combo tidied up, you will not be able to easily isolate possible mount problems.

In general though, your EQ5 is a bit lightweight for your scope and it will always have trouble tracking for long periods (although you may be able to make it perform significantly better with a tuneup). However, for now it is a good way to support the scope while you work on it and it will probably be fine for subs up to say 20 seconds - maybe more - if the wind is not blowing. And with a very sensitive camera like yours and an f5 scope, you can image a lot of interesting objects with short subs. Suggest that when you have had fun doing that for a while, you will know what the mount limitations are and you will also know where you want to go next.