Vertical aerial photography is a type of aerial photography technique in which photographs are taken directly above the subject of the image. This type of photography is used for a variety of purposes, such as land use planning, environmental studies, archaeology, inspection of power lines, oil and gas prospecting, surveillance, commercial advertising, and even artistic projects. Aerial photographs are generally classified as vertical or oblique. A vertical photograph is one that has been taken with the camera axis directed towards the ground as vertically as possible, while an oblique photograph is one that has been taken with the camera axis directed at an inclination with respect to the ground.
Those that are tilted less than 3 degrees are still considered vertical photographs, unlike oblique photographs. Oblique photographs (also known as oblique aerial photographs or oblique aerial photographs) are taken from an elevated point, which forms an angle that is neither horizontal (photograph at ground level) nor perpendicular (vertical aerial photograph) with respect to the area being photographed. With a solid knowledge of the different types of aerial photography, as well as their uses, aspiring aerial photographers can develop an interesting, rewarding and lucrative career. Aerial photography usually involves a minimum of two camera lenses connected together, known as a 2-lens system, but you can also use more lenses.
To be considered an aerial photograph, the image must be taken with equipment that is not based on the ground. With aerial photogrammetry, images of an airborne ship are taken, while with terrestrial photogrammetry, photographs are taken from a camera in a fixed and elevated terrestrial position. The term aerial photography refers to taking pictures from an elevated position, often using an airborne ship, which includes equipment such as rockets, airplanes, hot air balloons and, more recently, drones. If the inclination is sufficient to capture the horizon in aerial photography (60 degrees from vertical or more), then it is an aerial photograph with a high oblique height.