Celestron SkyMaster Pro Manual Del Usuario página 6

SETTING THE DIOPTER / FOCUSING
To ensure a crisp, sharp image the focusing
system of the binocular must be set to
compensate for any differences in your eyesight.
This is achieved by setting the diopter (located
on the right eyepiece) before use. To set the
binocular to your eyesight follow the instructions
below.
To focus the binocular:
1. View an object in the distance through the
binocular.
2. Cover the right objective lens with your hand
or the objective lens cap.
3. Rotate the focus wheel until the image viewed
with your left eye is clear and sharp.
4. Cover the left objective lens with your hand or
objective lens cap.
5. Viewing the same object, rotate the right
I ENGLISH
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eyepiece (the diopter) until the image viewed
with your right eye is clear and sharp.
6. Your binocular is now adjusted to your eyes
and focusing on any object can now be achieved
by simply turning the focus wheel.
TIP:
Eyeglasses worn for nearsightedness should be worn when
using binoculars as you may not be able to obtain focus at
infinity without them.
Diopter
Adjustment Ring
Focus Wheel
Fig 3