Bestscope International Limited
4. Using the CT to look the light ring’s image
①
and the phase contrast ring’s image
②
, if the light ring’s
image is not sharp, please shifting the CT’s ocular until you can see a clear image of the light ring
②
.
5. Adjusting the bolts of the two centering holes
③
in the phase contrast slider by the screwdriver
③
until
the light ring center and the phase contrast center are coincided.
6. The 10X and the 20X phase contrast objective use the same light ring on the phase contrast slider. So
you need to check the coincidence of the light ring center and the phase contrast center when changing
the objective. If having departure, you ought to center again.
★
If the light ring is centering incorrectly, you will fail to obtain the best viewing
effect of the microscopy.
★
After removing or replacing a thick specimen, the light ring and the phase contrast
ring are likely to deviate each other, which will result in a decline of the image
contrast. So if happened, please repeat the steps as above.
★
If the container or the cover flip which used to place the specimen is not flat, it
maybe need to repeat the centering steps for obtaining a more contrast effect. Please
center the light ring by the phase contrast objective, according to the sequence of
low to high magnification.
