Distinguish between aerial photograph and map.

Aerial Photograph

Map

• It is a central projection.

• It is an orthogonal projection.

• The scale of the photograph is not uniform.

• The scale of the map is uniform throughout the map extent.

• Enlargement/reduction does not change the contents of the photographs and can easily be carried out.

• Enlargement/reduction of the maps involves redrawing it afresh.

• Aerial photography holds good for inaccessible and inhospitable areas.

• The mapping of inaccessible and inhospitable areas is very difficult and sometimes it becomes impossible.