trouble was that we had to determine the interior orienta- 
tion as well as the new distorsion curve (2); 
2) then we tried the Galileo - Veroplast camera with focal 
length f = 150 mm, 13x18 plate size, kindly lent us by Of- 
ficine Galileo; 
3) we also used the Galileo CONTONAR camera, with focal length 
f = 150 mm, 23x23 plate size; 
4) the C. Zeiss T.M.K. camera, 60 mm focal length, 9x12 plate 
size, fitted with an additional lens to suit 1.8 m exposu- 
re distance; 
5) the Wild P31 camera, 99 mm focal length, 10x12.5 plate si- 
ze, fitted with a spacer ring to suit 1.8 m exposure distan 
ce, This camera was kindly put at our disposal by Wild |ta- 
lia. 
In the above mentioned publication (2) we described the 
performances of the first two cameras; let's now report about 
the results obtained with the last three cameras. 
As a methodology, exposure distance was kept equal with 
all cameras. Naturally enough, the result was that we got a 
different scale for each stereo-pair of photograms. 
If we want use the analytical procedures, the réperes of 
the cameras must be constructed in a way that they can be colli 
mated properly, with a higt accuracy. 
With the Galileo CONTONAR camera the problem was that ré 
peres did not easily collimate with monocomparator, due to 
their particular shape. 
Therefore we suggested the producer to introduce a certain 
modification in order to improve the quality of results. 
In the T.M.K. camera, coincidence of réperes is easily ob 
tainable; the further advantage of the Wild P31 is to have the 
principal point clearly indicated by a crosslet: this allows 
checking. 
It is well known that fitting for close focal distances 
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