Olympus BX53M - Page 55

C
D
A
B
49
BX53M
Turn the condenser height adjustment knob to bring the field
diaphragm image into focus. (Picture A)
5
Turn the centering knobs (2 positions) to adjust the field diaphragm
image to come to the center of the field. (Picture B)
6
Turn the field diaphragm ring in the arrow direction to open the field diaphragm
gradually until the field diaphragm image inscribes the field of view. (Picture C)
If the field diaphragm image is decentered, try centering again.
7
Open the field diaphragm until the field diaphragm image becomes
almost the same size (inscribe) as the field of view. (Picture D)
8
Field diaphragm
image
Field of view of
the eyepiece
5
7
8
6