It can hold a 17 inch laptop I think. Just to show the depth, A 50d with 70-200 f4l is mounted with not lens hood is able to be put into the bag with it closed nicely.
I heard tenba is not available anymore in Singapore. But you can go to jb johann photo at angsana to get one.
there are different sizes
i bought mine from HK
Thanks, looks like I have to make a trip to JB to check out the various sizes. Too bad its not distributed locally anymore.