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FOCUSING TO YOUR OWN VISUAL ACUITY
Focusing your binocular to your own visual acuity, also known as "setting
the diopter adjustment," is very important as this will prevent eye strain and
provide you with a crisp, sharp image.
TO SET THE BINOCULARS FOR YOUR VISION
1. View an object about 50 to 100 yards in the distance. If using a binocular
with Switch/Power Technology, select the high magnification setting by
positioning the switch in front of the center focus dial to the appropriate
position. The switch must be positioned to one side or the other; do not
leave it in the middle.
2. Cover the right objective lens with your hand or with the objective cover.
3. Adjust the center focus dial (located on the bridge between the ocular
lenses) until the image presented to your left eye is clear and sharp.
4. Cover the left objective lens with your hand or with the objective cover.
5. Adjust the diopter adjustment dial (located on the right side between the
binocular body and the right eyecup) until the image presented to your
right eye is clear and sharp.
Your binoculars are now focused for your eyesight.
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