When I'm shooting in doors, I use old primes for their fast apertures and generally need to keep two or three at hand to meet my 'zoom' options. Typically I'll have a Panasonic 20mm (small), a Takumar 50mm w/adapter (medium sized) and a Nikon 85mm w/adapter (somewhat larger than than the Takumar). I'll also have a spare battery, but that is small enough to go in a pocket. I'm looking for a small fanny pack that can hold two lenses, preferably with some webbing that will keep the them from banging together. Does anyone have any good recommendations?