Vanguard Alta Sky 42 Professional Camera Backpack for DSLR or Mirrorless Camera (16.6 Liters, Gray)The Vanguard ALTA SKY 42 Backpack in Gray is designed to carry a mirrorless camera with up to a 600mm lens attached (or a DSLR camera with a smaller lens), and an additional 4 lenses all protected in the sturdy, well padded material for which the Alta Sky series is known. The interior is a light, bright orange that allows you to clearly see the contents of the bag, even in low light conditions. The Alta Sky 42 can also carry a tripod in the center for