Pentax AL-M Series - Page 33

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3）Unscrew and remove the adjusting screw cap (11) ( Fig.5.7 ).
Fig.5.7
4）Adjusting the reticle by using adjusting pin. If
bb
2
'
2

( Fig.5.8 )
5）Repeating the above adjusting way until
22
bb


.
Calculating like:
2 2 1 1
()b a a b

  
，If
22
bb


，the reticle is
normal and the collimation line is horizontal, otherwise, adjusting
as follows.