Upload & Sell: Off
But if I rember right, then Arca-Swiss replaced that ballhead more than 10 years ago. So a comparison with the ballheads from AS today would be more fair
well, I have an Arca Swiss Z1. One of my colleagues was shopping for a ballhead, and a search on Amazon popped up the Sunwayfoto ones (this is when I found out about the deal and posted it here).
In any case, it seems pretty well made. At half the price of my Z1, I think it is a terrific bargain. If I didn't have a Z1, I would have picked up the DB-52 as well.