Benosaurous
Senior Member
hmm just back from a bangkok trip..
brought afew lens but in the end i only use 24-70 on 5D which would be ur 40D+17-55
i'd say bring a 24-105 + 10-2217-55(in back pack) use a back pack, just incase you really need the UWA.
most probably you will be using ur 24-105 90% of the time.
other 2 cents.
i went sydney hiking the whold day did not feel the strain with a 40D+10-22.
but when i walk around bangkok a whold day with a 5D+24-70 my neck is dying ...
wah liao little difference in weight can make the strain so much more ....
and when traveling with non-hobbist-photogs (i.e. family members) they are not so "happy" to be waiting for you when your ...changing lens / keeping stuff / cleaning stuff... i kena nag afew times liaoz ...hahaha
i second that, try to carry with backpack bags, my stealth reporter almost kill me. your shoulder will hurt like crazy.
your family member wont be too happy to wait for you to change lens and keeping stuff also, ahaha you'll know it when they start walking infront without you. so dont make the happy occasion to have any unpleasent arguements with your love ones with minimising the change of lens

and to strife, 5D+24-70 on a tour is like doing guard duty leh, haha, your are damn on.