Celestron TRAILSEEKER Manual Del Usuario página 7

EYECUP ADJUSTMENT
The TrailSeeker features twist-up eyecups to
accommodate both eyeglass and non-eyeglass
wearers. If you do not wear eyeglasses, twist
the eyecups counterclockwise until they reach
the up position. If you wear eyeglasses, make
sure that the eyecups are in the down position
to obtain the maximum field of view. The
eyecups can be set at positions between fully
up and down which may suit some users better.
Fig 4
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ENGLISH I