KY707 wrote in post #11173503
I'm going to Hong Kong, Guilin, Shen zhen
Yeh I was gonna say, I went to Beijin, X'ian and Hong Kong last christmas and had a few observations. Other than being extremely cold, I got a lot of attention/stares from people. Not sure if that bothers you or not, but with a huge lens (aka a white one) the stares and attention might be doubled. I definitely wouldn't leave your equipment out of sight, even for a moment.
As someone else mentioned, TONS of walking around to get from place to place, so weight would def be an issue.
Can't recommend a specific lens cause I haven't used some of the lenses you owned, but when I went I had just my 28-70L and a 450D and that was plenty heavy with all the warm clothes I had to lug around.