I recently picked up a used pair of Zhumell 20x80 giant binoculars. I own multiple telescopes, but this was my first pair of "astronomy" binoculars. Before buying, I performed a little due diligence research to get a feel for the general consensus of how they perform and what to expect. Of particular interest was "collimation" which I fully expected to have to perform.
I found many posts where people had purchased and returned low priced binoculars--sometimes 3-4 times--with the only reason being the binoculars were not factory collimated.
Coming from the world of telescopes, this attitude seems very bizarre to me. I understand [telescope] refractors do not usually require collimation, but all reflectors, no matter if you spend $100 or $20,000, require self-collimation. Collimation comes with the territory.
I suppose I could understand if you spent $1,000+ on a pair of binoculars and expect them to be reasonably collimated out of the box, but not at the sub $200 price point.
Am I missing something?