I currently have a fairly large Gitzo G1348 tripod that I used with my 4x5 view camera. It is my main tripod even with my Canon 5D. I am looking for a carbon fiber tripod that can fit in a 22" carry on bag for airplane travel. Gitzo use to make a four section tripod called the G-1228 that folded down to 21" and would support a 16lb. camera. It is no longer available. Does anyone have a suggestion for the type of tripod I am looking for airlines travel? Thanks, John