The coverage of maximum area involves more amount of information which can be done by terrestrial photogrammetry. This involves more information with less photographs taken.

The establishment of co-ordinates must be needed in order to have a clear idea about length of line needed. Co-ordinates are substituted in length of line determination formula for obtaining length required.

Shutter plays a prominent role in process of aerial photogrammetry. The speed of shutter must be in such a way that it should function at a speed of 1/100 to 1/1000 second. It is classified as between lens type, focal plane type, Louvre type.

Varying scale indicates joining points of unequal elevation, which means ground is not flat. Mainly, tilted photographs can be taken with or without reliefs. If it is taken with relief, scale cannot be uniform.

Parallax in case of stereoscopic view can be given as displacement of point in image due to successive exposures. In order to minimize parallax, difference in parallax is calculated. It is successive difference in points taken into consideration.

In general, a tilted photograph consists of inclination up to 3?, which makes it to have an individual tilted scale. It might help in determining objects which are inclined in photograph.

In a maximum rectangular area, rectangle must have dimension in direction of flight which has to be one-half dimension normal to direction of flight.

Accommodation is process involved in obtaining a flattened lens. Because of accommodation process, we might be able to determine approximate depth. We can have less strain on our eyes.

Magazine involves in holding films and houses film flattening device at focal plane. It plays a major role in drive mechanism, which can help in moving parts of system.

The formula of tilt displacement involves sine of tilt angle along with focal length of lens, point of rotation and displacement point. The entire representation can be done as
d = (i*a )²*sin t / f.