6
B
C
4.Condenser adjustment
4.1.1 Abbey condenser lifting wheel
（
Figure 05
）：
Through rotate abbey condenser lifting wheel to adjust distance between condenser and slider can
make brightness even to achieve best brightness and contrast.
4.1.2 Aperture adjustment
（
Figure 05
）：
Move aperture wheel and change size of aperture to change slider contrast.In common, objective
times smaller, aperture is smaller.
4.1.3 Binocular pupil distance adjustment and diopter
Eyepiece
tube
diopter
Right eyepiece
tube
Eyepiece
e
Eyepiece
tube
Left eyepiece
Figure 06
Attention: Aperture adjustment needs to match with objective field of numerical aperture(FN), FN
is smaller, aperture size should be smaller, otherwise the same. Change field of view brightness
can not achieve through change aperture size and position.
A
