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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.

2. 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 ring (found on the right 
eyepiece) 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.

The Diamondback comes with a rainguard for the ocular lenses 
and tethered objective lens covers. Use these covers to protect the 
lenses whenever you are not viewing.

Lens Covers

The Diamondback’s protective case provides safe storage between 
viewing sessions.

Carry Case

A

CCESSORIES

Attach the padded neckstrap to the Diamondback in three simple 
steps. Begin with the right barrel of the binocular and repeat the 
process for the left barrel.

Neckstrap

1.  Push a few 
inches of the strap 
through the strap 
attachment on the 
binocular.

3.  Adjust the 
overall length, 
then pull the tight 
until strap secured 
within the buckle.

2.  Hold the buckle 
and thread the end of 
the strap through the 
buckle.

Note: 

If using another type of strap, never attach metal o-rings directly 

onto the strap attachment.

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