21
(Fig.26)
(Fig.27)
y
To achieve maximum contrast in phase contrast a Green Interference filter is recommended. It may
be inserted in the filter mount of the condenser carrier.
y
To insert/replace an annular diaphragm take care the diaphragm has got the correct orientation
(Fig.28). Push the diaphragm against the flexible filament until it fits in the hole (Fig.29). If
necessary, use the allen keys to bring the annulus to the center of the hole. A fine adjustment will
be done by using the centering telescope (see above).
Fig 28
Fig 29