i 
of point transfer with the AP/C-5 
.1 
Some few trials have been made to determine the 
accuracy of point transfer* For comparison purposes 
in the first test the accuracy of a signalized point 
point somewhere in the field was selcted and x- and 
yt-parallaxes have been cleared. In the third test, the 
same natural point was taken, but Dove prisms were 
used to clear y-parallaxes. 
3*1 Signalized point: standard deviation for x- and y 
are nearly the same* 
sx~ 2.1^ probability 95% 1.8<sx<2.8^ 
3*2 Naturcil point in a field* Y-parallaxes cleared without 
dove prism. There is a meaningful difference between 
standard deviations sx and sy. 
3*3 Same natural point as in 3*2 but y-parallaxes cleared 
with dove prism. X~parallaxes remained constant. 
has been measured. Then, in a second test, a natural 
sy= 3*0 ^ probability 95% 2.6<sy^3*7^ 
□EH} 
> 
sx? 2.8^ probability 95% 2* / t^sx^3*6 
sy= 6.8 (x probability 95% 5«*7s?sy^8*3 
:d 
r> 
sy= 2.8 u. probability 95% 2* / i^sy^3.6 
□