Only in using a magnifying power of from 1-1^ 1 
position of the camera reversed, the drawing and object ] 
maCtXIFicatiox table. 
Diopters of the con- 
Showed 
.la.. 
||5f, >-;:;: 
'MM 
^' 
W^ 
+ 15 =10 + 5 
+ 12.5 =^12+0.5 
+ 10 
+ 10.5 = 10 + 0.5 
+ 6.25 = 6 + 0.25 
d 
d 
66 nun. 
100 
133 
160 
200 
5 
4 
Ir 
+ 2.5 
+ 2.5 
+ 2.5 
z 
400 mm. 
400 ;; 
333 " 
400 " 
400 " 
400 " 
