Originally Posted by pdlamb

Sounds like the OP rides to shoot. If that's the case, either load up tripods, lenses, and the whole nine yards in a pannier or two, and go for it. (You might want to make sure you've got a kick stand on the bike to hold it up while you're setting up, photographing, and taking the photo equipment down and re-packing.) A little bit shy of that would be a Ortlieb bar bag with the camera equipment padding add-on, if they still make that....