I mostly do landscape and flower photography. I have recently been to Acadia National park for night/milky way photography and caught the astrophotography bug/virus…
So I am thinking to get a good GEM (German Equatorial Mount) and may be start with it for now. What are your thoughts? Thank you for your time and input.
It’s definitely a virus, and it’s hard to kill. Beware!
A long lens with the D850 on a solid GEM mount will get you some great results! Try and plan ahead a little if you want a telescope, and make sure you get a mount capable of a decent payload.
Also, check out this article on how to start with deep-sky astrophotography without a telescope: https://www.photographingspace.com/deep-sky-astrophotography-without-telescope/
Mounts similar in size to than the Celestron AdvancedVX (and even a bit smaller) are great for getting into it and preparing a bit for the future. Even the smaller travel mounts like the iOptron Sky Guider and Sky Watcher Star Adventurer can get you going and won’t be a waste if you later decide to upgrade to a bigger mount and telescope.
Hope that helps!