User's Manual

3
BINOCULAR
DIAMONDBACK
®
HD
Rotate the barrels in or out to
match the IPD of your eyes
with that of the binocular.
IPD
Distance between the centers
of the ocular lenses.
Twist-up Eyecup
BASIC OPERATION
Adjust the Eyecups
The eyecups on the Diamondback
®
HD binocular twist up
and down so any viewer can see the full field and enjoy
comfortable viewing—with or without eyeglasses.
When not using eyeglasses or
sunglasses, keep the eyecups
fully extended. For the best
viewing when wearing glasses,
twist eyecups down.
Adjust the Interpupillary Distance
The interpupillary distance (IPD) is the distance between
the center of your left and right pupils. Match the IPD of
your eyes and your binocular by rotating the barrels in or
out until you see a single image free of shading.