Update: I did get one of the Pelican cases for carryon at the airport. Worked fine, but really does not hold too much. Did not have courage to check. I think in future if I'm going to struggle anyway with carryon, a canvas case that holds more stuff is preferable. Used the 24-70mm almost all of the time anyway. Too hot and humid in Malaysia to carry much. Did miss a good tripod. Little collapsable thing was useless!