Zeiss EXTARO 300, Инструкция по эксплуатации

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Instructions for Use Preparing system for use
Parfocal imaging
Parfocal imaging means that the image will remain sharp under different magnifications
once it gets focused under the maximum magnification. Setting the correct diopter of the
eyepiece is critical to ensuring parfocal imaging. If you don’t know the diopter of the
your eyes and would not like to wear any corrective eyeglasses during operation, you can
follow the procedure described below to properly adjust the diopter of the eyepieces.
1.
Set MC to maximum
magnification (2.5x).
Position the OPMI head
over a piece of paper with
writings on it. Adjust the
height of OPMI to get a
proper working distance to
the paper and then lock
the suspension arm.
2.
Adjust the varioskop to get
a sharp image of the writing
on the paper. You can
observe the image of the
writing by outputting it to a
monitor with an integrated
camera in the OPMI, or by
directly looking into the
eyepiece if no camera
available.
3.
Set MC to minimum
magnification (0.4x).
4. Look into each eyepiece
with the corresponding
bare eye and adjust
diopter until the eye sees
the writing in sharp focus.
Make sure the working
distance is unchanged
during diopter adjustment.
5. Set the MC to 2.5x, check if
the image of writing now
remains sharp (i.e. the
parfocal status). If not,
repeat Step 1~Step 4.
6. Turn the eyecup to the
desired distance.
305935-3500-000 – 2.1 – 2017-12-15
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