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IPD
The eyecups on a Razor 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
through eyeglasses, twist eyecups
down.
Adjust the interpupillary distance
The interpupillary distance (IPD) is the distance between the centers of
the left and right eye pupils. Match the IPD of your eyes to that of the
binocular so that you see a single image that is free of shading.
C
USTOMIZING
THE
R
AZOR
HD
Adjust the eyecups
Rotate the binocular barrels
inward or outward to line your
eyes up with ocular lenses.
IPD is the distance between the
centers of the ocular lenses.
Properly focus the binocular
For the best views, follow this two-step process to properly adjust the
center focus and diopter.
Choose an object that
is about 20 yards away
from you and stay in the
same spot until you have
adjusted the binocular for
your eyes.
1. Adjust the center focus
—start by closing your right eye or covering
the right objective lens with your hand.
Focus your left eye on the object and adjust
the center focus wheel until the image is in
focus. Leave the center focus in this position
as you adjust the diopter.
Adjust the diopter
—start by closing your left eye or covering the left
objective lens with your hand. Look through
your right eye and adjust the diopter until the
object is in focus. Make note of this diopter
setting in case you need to set it again.
From this point on, you will only need to use the center focus wheel.
To adjust the diopter
on the Razor HD,
pull out on the center
focus dial, rotate to
the proper diopter
setting, and push the
focus dial back in to
lock diopter position.
