Aerial photography requires a drone that has a stable flight and the ability to hover in one spot. A camera gimbal is of extreme value as they keep the camera steady whilst the done is in motion. The ability to have a long flight time is also a must. Reliable and well maintain equipment is also of value as you don’t want to lose an expensive camera drone just because your battery went flat.
Camera Drones have GPS for position tracking or to allow for waypoint tracking while flying. Waypoints allow you to program where the drone should fly. Other programs allow for panoramic photography, circle around point of interest, follow me, obstacle avoidance, return to home, automatic take-off/landing, etc.
Some things to consider buying with or for your camera drone.