27
OKO-1-BA-en-2111
Problem
Possible causes
Blurred details
Bad picture
Poor contrast
Vignetted field of view
Aperture diaphragm is not open wide enough
Condenser is lowered too far
The objective does not belong to this
microscope
The front lens of the lens is dirty
An immersion lens is used without immersion
oil
The immersion oil contains air bubbles
The condenser is not centered
The recommended immersion oil is not used
Dirt / dust on the lens
Dirt / dust on the front lens of the condenser
Dirt or dust in the field of view
Dirt / dust on the eyepieces
Dirt / dust on the front lens of the
Condenser
Dirt / dust on the object
One side of the image is blurred
The table was not mounted correctly
The lens is not correctly pivoted to the beam
path
The revolving nosepiece is not mounted
correctly
The object lies with the upper side down.
The picture flickers
The revolving nosepiece is not correct
mounted
The lens is not properly mounted on
slewed into the beam path
The condenser was not properly
centered
The coarse drive is difficult to
rotate
The rotational resistance brake is too
tightened firmly
The cross table is
Solid blocked.
The table moves down by itself
The fine drive adjusts itself
The rotational resistance brake is too little
tightened
Touching the table blurs the image
The table was not mounted correctly
Содержание OPTICS OKO 178
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