How much cheaper is it to buy Canon SLR in Hongkong than in Chinese mainland?

To buy this kind of thing in Hong Kong, you have to go to Mong Kok, where there are not only comprehensive electronic and electrical stores such as Li Ze, Broadway, Laser and Zhongyuan, but also several good photographic equipment stores such as Wancheng and Yiyuan. It's cheaper to go to photographic equipment stores, generally 200-300 yuan cheaper than the mainland (just comparing the absolute value, ignoring the exchange rate difference between RMB and Hong Kong dollars), and cheaper than those comprehensive electronic and electrical stores; And the latter is often more expensive than the mainland. When buying, be sure to ask in advance whether it is a global warranty including Chinese mainland! And let them show their valid invoices and warranty cards when they pick up the plane. Canon's body has a warranty card, and so should the lens. Don't want to lose one!