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are the 
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Figure 4: Rollei 6006. 
figure 3). À steep slope to the south and the west makes 
an ideal camera arrangement impossible. So a stereo pair 
was taken of the north and east facade each, and three im- 
ages had to be used to cover the west and south facades 
due to the smaller object distances. 
4.1. Rollei 6006 
Because of sufficient accuracy, flexibility in handling and 
ease-of-use, terrestrial cameras like the Rollei 6006 met- 
ric (see figure 4) play an important role for tasks in archi- 
tectural photogrammetry. The Rollei 6006 metric is an 
one-eye, medium format (6 x 6 cm”), full automatic Mo- 
tor-SLR camera system equipped with automatic shutter 
   
  
  
  
  
  
  
  
  
  
  
  
Figure 5: Canon CI-10. 
and flash. Exchangeable magazines for roll films (12 ex- 
posures) and a selection of lenses make the camera sys- 
tem flexible for many applications. In this project, the 
images were taken with a 40 mm lens and a high speed 
colour slide film. 
4.2. Canon CI-10 
For the image acquisition with a camera using a solid- 
state sensor, a Canon CI-10 colour still video camera with 
a 9 mm lens was taken (see figure 5). It employs a CCD 
image sensor of 8.8 x 6.6 mm? with nearly 380000 sen- 
sor elements (for red, green and blue) and records the im- 
ages on still video floppy disks. The digitized images 
have a size of 508 x 466 pixels. This results in a pixel 
spacing of 15.3 um in horizontal and 12.9 um in vertical 
direction. 
  
  
  
  
  
  
  
  
  
  
  
  
  
Figure 6: Zoomed image parts of the church Giova. 
(a.) scanned images of Rollei 6006, (b.) images of Canon CI-10.