Using The Eye Shades; Using An Eyepiece Micrometer Disk - Olympus SZX7 Instructions Manual

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Diopter scale of the 10X eyepieces
The valid range of the diopter scale is between -8 and +5 but
TIP
a slight margin is added to it. Therefore, the diopter value may
exceed +5 or -8 when it is adjusted to the maximum. In this
case, whether the diopter value is over +8 or under -5 can be
identified by the length of the eyepiece.
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Using the eye shades

The eye shades are not provided with ESD protection
TIP
performance. When ESD protection is required, do not use the
eye shades.
When Wearing Eyeglasses
Use with the eye shades in the normal, folded-down position. This will
prevent the eyeglasses from being scratched.
When Not Wearing Eyeglasses
Extend the folded eye shades in the direction of the arrow to prevent
extraneous light from entering between the eyepieces and eyes.
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Using an eyepiece micrometer disk

WHSZ10X-H/15X-H/20X-H
1 Rotate the disk-mounting ring a of the eyepiece counterclockwise
to remove.
2 Prepare an eyepiece micrometer disk b (24 mm dia. x 1.5 mm thick),
remove dust and dirt from its surface, and fit it into the disk-mounting
ring a so that the engraving on the micrometer disk faces downward.
3 Gently screw in the disk-mounting ring a incorporating the eyepiece
micrometer disk into the eyepiece. Turn the ring clockwise to attach
it firmly.