13
IMAGE CONCERNS
PROBLEM
REASON FOR PROBLEM
SOLUTION
No image
Nosepiece not indexed properly
Move revolving nosepiece until
objective lens clicks into position
Poor resolution
(Image not sharp)
Diaphragm improperly adjusted
Too much light
Objective lenses dirty
Eyepiece lens dirty
Washed out image
Specimen slide dirty
Spots on field of view
(Eyepiece or condenser lens
dirty)
No immersion oil used on 100X
objective lens
Bubbles (air) in immersion oils
Adjust disc diaphragm or iris
diaphragm
Adjust light intensity control to a
lower position
Clean objective lenses
Clean eyepiece lenses
Adjust disc or iris diaphragm
Clean slide
Have qualified service technician
clean inside of lens
Use small amount of immersion
oil between the objective and the
slide
Remove bubbles by carefully
moving nosepiece back and forth