Orthophoto Maps

Orthophoto is derived from aerial photos of which image displacement caused by relief and camera tilts has been rectified. It maintains the pictorial information of the original aerial photos and is in uniform scale.

The Orthophoto Map series (OPM50 and OPM100), are derived from Orthophotos. OPM50 is at scale 1:50 000 with addition of place names, while OPM100 is the plain version at scale 1:100 000. They are compiled from about 1 700 aerial photos taken in November 2007. The majority of aerial photos used are taken at a flying height of 2 400m and supplemented by aerial photos taken at 3 600m. Digital photogrammetric technology is employed at data processing, ortho-rectification and mosaicking.

Map Price List(PDF Format) | Production Schedule for Small Scale Maps(PDF Format)

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