I am soon to go on my first guided tour of china (Haven't done a guided one in 30years... always traveled independantly). I don't think that taking a full kit will be advisable as it will be hot, crowded and not much time in any one place. I was thinking of taking my K5 with either a 35mm prime (quality lens) or 17-70 (flexible but less quality) and the flash. I will also take a nikon P610 (f3.3-6.5 Mega zoom) which gives quite good pics. The question is, do i take the prime lens and go for the quality or take the 17-70 and go for the flexibility?

Help appreciated.