Do you want to use it for guiding or imaging?
#Would it be worth to buy this?
serene umbra
serene umbra
I am not a expert at refractors but it looks goo for my eyes, maybe wait for a second opinion.
loud fern
With the flattener it would be a decent setup. Because it’s a guide scope, it doesn’t have a conventional focuser which might make it kinda awkward to get good focus. If you’re getting an SCT later and want to get wide field photos right now, I would say it might be worth it. $670 is quite an expensive guide scope though.
pine lintel
The ZenithStar 61 II is more expensive than the guide star but it has an actual focuser. Personally, the bad focuser was a deal breaker for me. But if you are on a constrained budget the guidestar is still a good choice
Reminder:
Both will need this field flattener to take good images https://williamoptics.com/new-adjustable-flat61-for-z61
