HUNGARIAN NATIONAL REPORT
Report of the Society for Geodesy and Cartography to the
12th Congress of the International Association of Photo-
grammetry (Ottawa, 1972) on the photogrammetric activity
in Hungary.
1. Aerial photography
Aerial photography for the photogrammetric work carried
on in this country is by Wild RC-5 and RC-8 camera types,
using generally black-and-white negatives of an Estar
base carrier film and high dimensional stability. These
negatives are either a KODAK or ILFORD make. The majority
of the photos are 23x23, a smaller part 18x18 cm in size.
The Kodak EKTACHROME coloured film was also used success-
fully, if only at an experimental degree, with development
into slides. The coloured photographs were employed for
aerotriangulation, planimetric and relief evaluation.
Aerial photography was by planes designed and maintained
specially for this purpose and, in the last few years,
that by helicopters too was introduced with promising
results. The greater part of this work was performed in
March and April.
The photos are taken at a height between 400 and 4500 m,
so their scale varies in the range of 1:2500 to 1:250000 m.
The greatest part of the material is made for the survey
of areal, while a much lesser part for that of linear
structures, or their design.
2. Photogrammetric instruments
In Hungary, there are 6 companies at present engaged in
the field of photogrammetric evaluation and the manu-
facture of photogrammetric products:
Geodesy and Cartography Enterprise, Budapest
(BGTV),
Cartographic Company (KV),
Geodesy and Cartography Enterprise, Pécs (PGIV),
2442/57