There are plenty of affordable quadcopters available on the market. Not all of them are reliable enough to be suitable for professionals. The Aeronavics BOT Professional Quadcopter is different. It is a compact flying robot for farm inspection and aerial cinematography. It has a rugged design and supports GoPro cameras.
Thanks to Pix4Dmapper, you can convert captured shots by your drone into geo- referenced 2D aerial images and 3D surface models. The above video shows this quadcopter in action. The bad news? This is not cheap.