The vanguard adaptor 45 backpack is designed to hold one dslr with grip and attached lens 3 4 extra lenses a flash unit accessories memory cards cables battery and charger and tripod the vanguard adaptor 45 backpack is one versatile camera daypack that has been uniquely designed to adapt to all your shooting needs whether you shoot left or right handed the adaptor provides quick access zippered openings on both sides so you can start shooting in a matter of seconds the customisable in