" fable 1. Measured mean distortion values in ,um of 
| Yd Lamegon 8/100 N for various prinoipél 
~~ :. Qistance changes da* between O mm and + 4 mm 
* - : 
——— —— " T Bis EET NES ^u 
(ROB dun e ENIM i MINAS P la ET EN 3 A 
  
An 779,0 403 $036 $1.0 42,5 +4,0 menn 
P 13 +6 +6+6 +7 +7 +8 +79 
E 25 - [ +12 +12 +13 +13 +14 +12 +12 
: 39 +14 #15 +15 +15 +12 +12 +14 
54 +12 £12 13 +11 +14 +12 +12 
72 — 39.030 0:9 00320054 005 0 
9 22 m) 23 - 24 22 25. 22 
  
x 
E 
s] 
A 
x 
E: 
E 
rs 
E 
pass 
m 
Fd 
[^ 
= 
$ 
d 
E 
= 
E 
n 
Eu] 
E: 
4 
iM 
x 
Table 2. Boundary values of the depth of field for the 
: UMK 10/1318 referred to a depth of focus of 
  
+ 1 mm. 
Distance Range of depth 
setting inm of field in m 
1.4 1.3 eee 127 
129 dedos: 1.8 
1,0 deor n 1.9 
1:7 1.5 eco 2.1 
1.8 d. ee 2.3 
2.0 11:042 2.5 
2.1 1.8 2900 2.7 
2.3 1.9 eee 3,0 
2.6 2.0 cee 0 3.4 
2.8 2.2 ee... 3.9 
3.2 2,4 eee 4,6 
3.6 2.7.2222. 75,6 
| 4.2 3:0 .... T.2 
| "55 ; 3.3 sree. 10,0 
6 3:9 ete 716.6 
f 8 4.9 eee 49,6 
12 5,6 EER oo . 
25 1.2 e*?o9 aD 
oO 9.8 20900 CO