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1:9,000 to 1:10,000, the width of the strips covered amounted to 
approx. 1,000 to 1,200 m. 
In order to check the geometrical resolution performance, a series of 
white test strips was spread out on the airfield at Oberpfaffenhofen | 
and several flights were carried out in traverse and in longitudinal | 
direction, and pictures taken. The widths and distances of the test 
strips were the same and stepped as follows: 2,! m; 1,8m ; 1,2 m; 
0,6 m and 0,5 m. 
At a flight altitude of approx. 1,100 m above the ground, a pixel 
diameter of approx. 0,6 m was obtained on the ground. This corresponds 
to a line pair resolution of approx. 1,8 m to 2,! m. These values were 
just reached. The white strips are always imaged wider in relation to 
the dark gaps as sensor elements generate a signal even if they are 
only partly exposed. Strip gaps of 1,2 m could just be separated from 
one another. The resolution in line direction and in traverse direction 
is more or less the same. However, bright lines narrower than 0,6 m - 
as, for instance, the white center lines on the runway and the roads 
or the border lines of a football field - are still clearly visible. 
The eompensation electronies for the sensitivity compensation of the 
individual sensor cells functioned perfectly. Any remaining inaccu- 
racies in calibration will be corrected in the future. 
Some sections of the area were scanned with a camera inclination of 
approx. 25° in forward direction during to-and-fro flight to produce 
stereo picture strips. While looking at them under a mirror sterescope, 
it shows that this angle of convergence of 50° between the two images 
is slightly too high and that shadow effects have a very negative effect. 
In the case of the first picture,so-called "blooming effects" appeared 
due to too large an aperture setting leading to overexposure effects. 
The sensor cells which are subject to overexposure and thus are saturated, 
also swamp their neighbouring cells with their charges, so that the latter, 
too, "overflow" and emit too bright a signal. For the following flights 
this effect was essentially reduced by smaller aperture setting.