I see lots of big white and blue mounts in you videos. They look very sturdy. Are they hand made by skilled amateurs or are they commercially built by a company and factory. I can't seem to find any information or examples in the US. I really enjoy watching you videos with translated captions. It's great to see how amateurs around the world share and collaborate. Thank you
Those are native Ukranian mounts called "White Swan" - very nice mounts manufactured by Ukrainian professionals. They have EQ8 class of capacity and tracking, they are really mighty.
nice mechanics ,the" opening scene" is simple and clever hope there will be cleared sky for your testings of mounts and optics take care of you salutations