I use a front opening backpack (REI version of a Kelty Red Wing). My lenses (3 plus some extra room) go in a fly fishing reel case with some extra separator that I got from Cabella's. I have a case from PhotoBackpacker for the camera, but I mostly just wrap it in the darkcloth. I can also fit in about 6 filmholders, a spot meter in a neoprene Zing case, loupe, etc in the bag somewhere. I mostly carry the camera on the tripod in the field. I think if I used LF more, I'd just get a shoulder bag to hold everything except the camera and have a separate bag for the camera and keep the camera on the tripod in the field.