Sorry for the large set of questions - but I am trying to upgrade and the issues are all inter-related.
I have been doing astrophotography for about 3 years now with a really old telescope.
I have an old Celestron Celestar 8 that I have over the last few years been using for astrophotography, though keeping it aligned has been a challenge (I can only do 10-15 second exposures and every half hour I need to recenter the view) . I have been using a Canon R5 attached to the Celestron (or to just a zoom lens attached to the R5 for large objects like Andromeda). I have decided to upgrade, though for financial reasons I can’t upgrade everything at once so my plan is to buy a better mount—I am planning on a EQ6-R Pro--and a tracking scope and a mini-PC to run the tracking scope. I have a Mac laptop so I can WiFi into the mini-pc to use the tracking scope. In future years think about a dedicated astro camera and possibly a wider angle telescope but for the next few years I hope to stick with the Canon R5 and the Celestron attached to the EQ6-R. I am hoping to get some questions answered so I don’t make a costly mistake:
1) Will I be able to attach the Celestron to the EQ6-R? I see on the forum that some have attached larger telescopes to this mount - - is there anything I should be aware of?
2) The Celestron has a fork mount which I would unattach. I found what I think is the right type of Losmandy Dovetail that should attach to the Celestron and allow me to attach it to the mount. Does this look right or is there a better way? https://www.astro-physics.com/lmdc8
3) To attach the secondary camera to the aiming scope I imagine I have two choices – attaching it to the top of the scope or using an off-axis glider. I already have an off-axis glider but I have not used it much as I needed to change the focus of the telescope from what was working with the camera to use it. Would the off-axis glider work with a secondary camera – or would it be better to buy a secondary camera AND a small tracking scope? If both would work or the off-axis solution would work better that would save me some $$ - but is it more difficult to use? Note that the telescope is 2032mm but I use a Celestron reducer f/6.3 which decreases the focal length.
4) If the answer is to use a tracking scope most of the setups I see online have a telescope that has a smaller aperture. I was thinking something like William Optics UniGuide 50mm Guide Scope or a ZWO 30 mm f/4 Mini Guide Scope. The camera I was thinking of is ZWO ASI120MM-S Monochrome CMOS Astrophotography Camera. For the mini-PC a MeLE Quieter 2Q J4125. If I go with the off-axis glider would I need a different camera type?
5) Does the tracking scope aperture need to be closer to the main scope?
6) If the answer is it is better to use a tracking scope is it better to attach an extra dovetail or to attach and use tube rings? Do I need tube rings for anything? What about attaching the small computer to the setup to run the tracking scope and save the data – I have seen others use that in their setup.
7) For the tracking camera I am thinking a ZWO ASI120MM Mini Monochrome CMOS Camera. Thoughts?
8) Am I going to have issues commanding the mini-PC with a Mac laptop? Does the software work well on the Mac?
9) What am I forgetting?
Thanks in advance