most impt is to bring ur eyes. Before you leave make a conscious checklist of the kind of pics u wanna take. If its landscape intensive, bring the tripod, ultrawide lens, ND grad, etc... if its a city and u want to take more of street then a normal lens is ok. If you go with the gear to take everything, u'll be prepared to take nothing. I went to Ho Chi Minh just wanting to take street shots and i brought a Nikon FE2, 50mm lens and a 105mm lens + alot of film (I thought if i got robbed at least its not my dslr hehe). I had the best time just being focused on the shots i wanted to take and didnt regret not bringing my other stuff.