J'ai trouvé mon bonheur je pense : Vanguard Sedona 51
Dimensions extérieures : 32 x 22.5 x 52.5
Dimensions intérieures : 26 x 16 x 26

This tri-colored black Sedona 51 DSLR Backpack from Vanguard holds a DSLR with an attached lens such as a 70-200mm f/2.8, three additional lenses, and a flash between padded touch-fastened dividers within a detachable camera insert inside the rear-access gear compartment. The backpack features a front zippered pocket for storing up to a 13.3" laptop in a protective case. For your accessories, there is a spacious zippered storage compartment at the top.
Ce sac répond à toutes mes exigeances à 2,5cm près.