1902 
1903 
1904 
1905 
1906 
1907 
1908 
1909 
Rudolf makes Tessar lens in Zeiss Jena firm. 
In Great Britain, Fourcade makes an instrument similar 
with Pulfrich's stereocomparator, without knowing his 
works. 
Stereocomparator, model A, is made up. 
A theodolite is mounted above the photographic camera,in 
case of Seliger's phototheodolite, 
C.Pulfrich's field Phototheodolite is made up. 
In Austria, T.Scheimpflug makes a photographic camera,hav- | 
ing 8 lenses, in order to register surfaces, as large as 
possible, during only one exposure. | 
It seems that the first reasonable use of the aerial pho- 
tography, in the topographical purposes, takes place du- 
ring the war-like expedition the Japanese army made in € ^ 
Manchuria. 
Stereocomparator, model C, is made: up.” 
Stereocomparator, model D, is made up. 
August,15. The German Alfred Maul gets a patent for his 
nechanism used to maîntain the photographic camera posi- 
tion when it is flow in a reconnaissance rocket, that is, 
a very system for the gyro-stabilized camera. 
E.Dolefal establishes The Austrian Society for Photogram- 
metry, in Vienna, the first photogrammetric organization. 
The first stereometric camera is made up (C.Pulfrich),de- 
dicated to geographers and scientific investigators. 
Pola's hard Phototheodolite is made up. 
Aimé Laussedat died (born in 1819). He is the father, fo- 
under of the photogrammetry. € ) © 
The first Stereoautograph, the first automated stereoplot- 
ter, is made clear, following Von Orel and Rost's indica- 
tions employing a jointed parallelogram system in the exis- 
ting Stereocomparator. lt is used in the terrestrial ste- 
reophotogzrammetry. This instrument is manufactured in Zeiss 
firm; it allows coordinate registering simultaneously with 
the stereoscopic viewing and the planimetry and relief tra- 
cing, 
April. The first aerial photograph from an airplane is ta- 
ken by the operator accompanying pilot W.Wright, whose na- 
me being unrecorded. The photograph is made in Centocelle, 
Italy and,surely, it is not made for topographical purpo- 
c 
od 6 
ITUA e 
the French Air-Club in Paris, sets up a competition for 
aerial photographs where the first aerial photographs from 
airplane are shown. At the same year, in Dresden, an inter- e 9 
national exhibition for aerial photography takes place. 
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