Yes, at last I want to get a decent(ish) bag to carry some gear in.
I want a backpack type sufficiently adept for carrying a DSLR and mounted telephoto lens
which comes out to just under 400mm in length.
In addition, it should have a few other handy compartments.
But, it doesn't have to be anything great, and it should be airline-cabin compliant.
Where to start?