I don't think this mirror is thick.
You think correctly. The Canopus I saw has an f/3.3 24" and the mirror weighs only 23kg. I also don't think that's thick.
That is, I can assume that at 30 kg the structure is very weakly and there is no point in seriously discussing it.
Since you are traditionally excel at assuming a lot without any actual data or experience (the Alt bearings can be separated and were not included, just as a data point), there is indeed no point in discussing it with you, especially since you haven't seen that 24" in operation nor have you seen the mirror box and 27 point cell. If I told you it works, you'd just resort to personal incredulity.
On the other hand, the point of this thread is to discuss Canopus and UC scopes, so you'll just have to forgive others for discussing them.
Can't post any pictures that aren't public yet, the official grand opening is on the 28th of October.
The one picture the owners posted is here (serendipitously, this is the mirror box, without the Alt bearings):
Mind you, that 30kg was off the top of my head. Might be more, but we were discussing the differences between a Canopus and an Obesssion UC and I'd really hate to drag a UC of that size out of a car, especially given the mirror thickness that Obsession usually favours.
Not that dragging that 24" Canopus mirror box out of a car wouldn't make me nervous (I picked 20" for my next scope because I feel more comfortable with that size), but at least it is possible to set it up yourself.
For the original poster: a 16" is obviously lighter; last weekend I saw the owner of a Sumerian carry the whole scope from the mirror box up in one piece down a small hill (he just had to fetch his platform plus rocker box later). You could also contact the owners of the 24" after the 28th of October to get their view on how the scope performs to get an informed data point (albeit that of owners, so I cannot exclude some bias).
Edited by sixela, 17 September 2021 - 09:50 AM.