Bestscope International Limited
not high
；
The detail is
not clear
；
Don’t obtain
the
phase
contrast effect
The lens (condenser, objective,
ocular or culture dish)
become dirty
l
l
a
n
a
e
l
C
In
the
phase
contrast
observation,
the
bottom
thickness of the culture dish is
more than 1.2mm.
Use a the culture dish whose
bottom thickness is less than
1.2mm
9
Use a bright field objective
Change to the phase contrast
objective
12
The condenser ring is not
coincident with the objective
phase ring
Adjust the condenser ring to
match the objective phase ring
12
The light ring and the phase
contrast kits is not centered
Adjust the bolts to center them
12
The objective used is not fit
to
the
phase
contrast
observation
Please use the compatible
objective
12
When looking at the edge of
the culture dish, the phase
contrast ring and the light ring
is deviated each other
Moving the culture dish until
you obtain the phase contrast
effect. You also could demount
the slider, and dail the field
diaphragm with the direction of
“ ”
13
6.one side of the
image is unfocused
The nosepiece is not in the
center of the light path
Insure the nosepiece is in the
“clicked” position
4
The specimen don’t place
properly
Place the specimen on the
stage correctly.
9
The optical performance of the
culture dish bottom is poor
(such as erose figure and soon)
Please use a regular culture
dish
