Designed for use with a gripped DSLR, with 70-200mm f/2.8 with lens hood in shooting position, the Think Tank Digital Holster 50 V2.0 is a unique holster bag with several great features for the photographer on the move. The pop-down feature increases the height of the bag to allow a lens hood or telephoto lens to fit into it, thereby enhancing its versatility. It has a rail Attachment for optional components, a stretchable Front Accessory Pocket, and Rotate or Lock technology for use with belts. This holster bag is perfect for the photographer who needs quick access to their equipment.