I shoot 4x5 landscapes and travel fairly lightly, placing all my gear in an ordi nary backback. Until recently, I have simply put bubble wrap in Tupperware cont ainers to carry my lenses (one for each, total of two lenses). Recently, howeve r, I obtained an Super Angulon 90/8, which is larger than the lenses I carried a s noted above (e.g., Ektar 203). Result: I need another option for protecting t hese lenses in my backpack. Any suggestions? I am open to purchase or do-it-yo urself solutions. Thanks in advance.