What does vertical photography mean?

Vertical photography means that the main optical axis of the camera is vertical to the ground or within three degrees from the vertical. The obtained photos are called horizontal or vertical photos.

Vertical photography means that the main optical axis of the camera is vertical to the ground or within three degrees from the vertical. The obtained photos are called horizontal or vertical photos. Commonly used large-scale topographic maps belong to vertical projection or near vertical projection, while photographic photos belong to central projection. The vertically projected object image is projected on the plane perpendicular to the light by parallel light, so the proportion of photos (or maps) is consistent everywhere, regardless of the projection distance.