I have a mirrorless Sony A7ii camera. My dad owns a Celestron CPC 800 (2000mm, F/10)-- for the duration of this pandemic, I will be living with him and therefore have access to his scope. However, at some point during or after the pandemic, I will be moving back to a different state and will not be bringing the scope with me.
Considering this, I am looking for some advice. I am very new to astrophotography so please explain jargon as you go, if possible.
If I understand correctly, if I were to purchase accessories for the Celestron CPC 800 to pursue astrophotography, I would need a t-adapter, t-ring, Stellermate program & equatorial mount. So my first question is: if I purchase all of these items, will I be able to photograph deep-space objects like galaxies? Will I be able to photograph planetary bodies in our solar system with detail?
If I purchase the accessories for the CPC 800, I will be spending over $1k. And then in a few months, I will be moving away and will only have access to this telescope maybe once a year. I have been told that it is an excellent scope, but not excellent for astrophotography, so it maybe seems like a waste of money. However, my dad lives somewhere where I can use the telescope every night, as long as the weather permits, since light pollution is low. Whereas when I move back home, I will be in a city and will use the scope less frequently.
I read on a reddit forum that for a similar price, one could purchase a mount + scope that would actually be better for astrophoto and that a mount is more important than a scope. If I am going to spend over $1k anyways on the Clestron CPC 800, perhaps it makes sense to just buy myself a mount & scope that I can then also take home with me once I move away. However, my budget is limited. But I also don't see much of a point in getting into astrophotography unless I can (at least eventually) get really great photos. So, I'm hoping to get advice about what type of mount, etc., I should get for a reasonable price -- and whether it makes sense to buy cheap and then with time get upgrades/accessories, or if it just makes sense to bite the bullet and spend a lot right away.
Regardless, I am looking for guidance on what type of equipment is good for deep-sky or planetary photography. I am also hoping for clarity regarding the difference & purpose of things like a wedge, equatorial mount, sky tracker, and which things are best used for deep-sky photography and which are best used for planetary photography.... and whether it makes more sense to add accessories to my dad's scope or to buy a whole new set-up. Furthermore, if I am going to buy a new set-up all together, is there a trade-off with picking a more portable mount/scope?
Lastly, I have a Sony A7ii. How does this camera bode with astrophotography? Or does it work better with particular scopes?
Just a reminder that I really get overwhelmed in all of this research with all the new jargon! Please be clear about the items you are recommending and what their purpose is, etc. Thank you!