Bushnell H2O 138005 User Manual

BINOCULAR
INSTRUCTION MANUAL
Congratulations on the purchase of your new Bushnell 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 you can adjust the binocular to your eyes,
and how to care for this instrument. Read the instructions carefully before using your binocular.
EYE ADJUSTMENTS (Figure 1)
How to Adjust for Distance Between Your Eyes
The distance between the eyes, called “interpupillary distance,” varies from person to person. To achieve perfect
alignment of lens to 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. Always re-set your binocular to this position before using it.
How to Adjust for Individual Eye Strength
As individual eyesight varies from one person to another, most Bushnell binoculars have a diopter setting
feature which allows you to fine-tune the binocular to your vision. Follow the focusing instructions below for
your type of binocular.
FOCUSING
Bushnell binoculars have one of two focusing systems: Center or “Insta-Focus
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” rapid focusing system has a focusing lever between the barrels.
Lit. #: 91-0203/0719
Fig. 1
Fig. 2
Interpupillary Distance
Diopter Setting
Fig. 3
Zoom Feature
Fig. 4
Roll-Down Eyecups

Bushnell H2O 138005 Specifications

General

Brand	Bushnell
Model	H2O 138005
Category	Binoculars
Language	English

Summary

EYE ADJUSTMENTS FOR BINOCULARS

Interpupillary Distance Setup

Steps to align binocular lenses to the user's eye spacing for a single circular field.

Individual Eye Strength Tuning

How to use the diopter setting to fine-tune the binocular to personal vision.

BINOCULAR FOCUSING SYSTEMS

Center Focus Mechanism

Describes the focusing system with a central wheel between the barrels.

Insta-Focus Lever System

Describes the rapid focusing system using a lever between the barrels.

BINOCULAR FOCUSING AND ZOOM OPERATION

Center/Insta-Focus Adjustment Steps

Step-by-step guide for adjusting focus using diopter and center/Insta-Focus mechanisms.

Zoom Feature Focusing Guide

Instructions for focusing variable power binoculars, starting at high power.

ADVANCED BINOCULAR FEATURES

Perma Focus Technology Explained

Explains the focus-free optical system for fixed viewing distances.

Waterproof, Fogproof & Eyecup Use

Details moisture resistance, fogproofing, and eyecup use, especially for eyeglass wearers.

BINOCULAR CARE AND SAFETY

Binocular Care and Cleaning Tips

Advice on handling, storing, cleaning lenses, and protecting the binocular.

Critical Sun Viewing Warning

Critical warning against looking directly at the sun to prevent severe eye damage.