Tasco 8x25 Off Shore Binoculars (Blue) - Manual (Page 3)

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Congratulations
on the purchase of your new Tasco binocular. Your binocular is a precision instrument designed to
provide many years of pleasurable viewing. This manual will help you achieve optimum performance by explaining how to adjust the
binocular to your eyes and how to care for this instrument. Read the instructions carefully before using your binocular.
WARNING: NEVER LOOK AT THE SUN OR OTHER INTENSE SOURCES OF LIGHT
THROUGH THE BINOCULAR TO AVOID THE RISK OF EYE DAMAGE OR BLINDNESS.
EYECUP ADJUSTMENT (Fig. 1)
Your Tasco binocular is fitted with eyecups which can be rolled or twisted up or
down (depending on your model) to optimize the view for your eyes and to exclude
extraneous light. If you are not wearing eyeglasses or sunglasses, keep the eyecups
fully extended (“up” position). If you are wearing glasses, roll down the eyecups or
twist them to the down position. This will bring your eyes closer to the binocular’s
eyepiece (ocular) lens to ensure you can see the entire image (full field of view with
no “cutoff” or “tunnel vision”).
IPD ADJUSTMENT (Fig. 2)
The distance or spacing between the center of the pupils, called “interpupillary
distance” (IPD) varies from person to person. To adjust the binocular to match your eyes,
follow these simple steps:
1. Hold your binocular in the normal viewing position.
2. Grasp each barrel firmly. Move the barrels closer together or further apart until
you see a single circular field (don’t worry about focus yet).
3. Always re-set your binocular to this position before using it.
Fig. 2
Interpupillary Distance
Fig. 1
Roll-Down Eyecups