With this backpack i can carry my Z8 + FTZII + teleconverter + 500 mm F/4 with hood reversed, all attached. + on the sides a tripod with gimbal head attached and a chair + on the back a camo net = about 15 kg but feels light as a feather (or close to...). Well... the backpack i was waiting for years, so congrats Pgytech. Cons ? None, except maybe the so-called "camo" wich in fact looks simply... black. A more kaki or brown tone (or mixed) would be better, i think.