Olympus CH40 - Page 13

CH30/CH40
7. Adjust the interpupillay distance of the eyepleces. (Page 11)
8. Center the field iris diaphragm by manipulating the two centering screws,
on the compensating lens. (CH40 only) (Page 12)
In case of CH30, centration is not necessary. If the optional field i
diaphragm attachment is mounted, center the attachment in the same
manner as described above.
9. Engage the objective to be used for observation and adjust the light n-
tensity to the desired level, then readjust the focus.
10. Adjust the field iris diaphragm.
This only applies to the CH30 if the optional field iris diaphragm attach-
ment is mounted.
S3HNG300H4
NOLLVAHASEO
40
AHVAINNS
11. Adjust the aperture iris diaphragm. (Page 12)