Yea, our aerial camera weighs almost 300 lbs with the lens & mount. The lens is about 200 lbs. The mount is another 100 lbs or more. It cost WAY more than the airplane.
The bottle of water is there for a size reference. The lens is completely hidden.
Our airplane. It's a Cessna 206. We call it the wheelbarrow or the pickup. It is just a tool to carry around some equipment.