The two big goof-ups
come from
- Not adjusting the oculars and
- Having the condenser too far down.
Keep
in mind that these scopes are used by lots of students, so yours is
constantly being readjusted or otherwise messed with. The previous persons
eyes are almost certainly not going to be the same as yours.
Here's what to do:
- Put a slide on the stage.
- Adjust the intensity of the light source
to a point that is
comfortable for you. Don't fry your retinae.
- Adjust the distance between the oculars
so you see the image as a circle.
- Close your left eye and use the coarse
and fine focus knobs to bring the image into sharp focus.
- Now close your right eye and open your
left and twist the ring on the adjustable, left, ocular to focus the
image.
- Don't touch the coarse or fine focus
knobs.
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