Checking onto a Singapore airlines flight (economy class) a couple of days ago at Melbourne Airport the check-in staff were weighing all carry-on bags and checking any single bag weighing more than 7kg irrespective of size.

They state only one bag each but allowed us to bring quite large camera bags and a laptop as well as one carryon, so 1 piece each with a camera none of which weighted more than 7kg. Whew. We would have been in a mess with only one carry-on each as we wouldn't want to trust them with either the laptop or the cameras as checked baggage. Before we reached the gate lounge the carry-on was checked again for size and weight.

Regards, Sue Waterloo, ON