Aerial Survey Camera Trials

Abstract

During 1985, the opportunity arose to make some test flights with the Wild RC10A and the Zeiss (Oberkochen) RMK A 15/23 with forward motion compensation. This paper outlines the changes incorporated in modern cameras, summarises the Ordnance Survey's photogrammetric tasks, describes the test flights which were achieved and illustrates the results obtained.

Topographic Surveying: The Jubilee Line Extension Survey

“…At the project evaluation stage it had been decided to use 1: 1500 scale black and white FMC photography for this project (Farrow, 1986;Cox, 1992). Had height data been an important issue, the case for using a 150 mm lens would have been given greater consideration, but as the priority was the planimetric detail, the largest practical contact scale was used.…”

Photogrammetric Developments in the Ordnance Survey in 1990

“…We have a small project in hand to examine which, if any, parts of the pre-flight planning and post-flight indexing processes can sensibly be computerised. Farrow (1986) reported on 0s trials of air survey cameras. We are now equipped with modem cameras from both Zeiss (Oberkochen) and Wild.…”

Photogrammetry in the Ordnance Survey: 1972–1986

“…Following the trials of aerial cameras in 1985 (Farrow, 1986) a new Wild RClOA has been purchased. Using the improved resolution, it is hoped to reduce the scale of photography for the basic tasks and hopefully reverse some of the findings of the ASR with respect to use of photogrammetry in support of revision of the small scale map series.…”