Focus Free - Binoculars Barska - Free user manual and instructions

Product Type	Binoculars
Brand	Barska
Model	Focus Free
Magnification	8x
Objective Lens Diameter	21 mm
Focus System	Fixed focus (no adjustment needed)
Field of View	305 ft @ 1000 yds
Prism Type	Porro
Lens Coating	Fully coated
Exit Pupil	2.6 mm
Eye Relief	10 mm
Close Focus	20 ft
Weight	12 oz (340 g)
Dimensions	4.5 x 3.5 x 1.5 in
Body Material	Rubber armor
Waterproof	No
Fogproof	No
Included Accessories	Neck strap, carrying case, lens cloth
Power Source	None (optical)
Cleaning	Use lens cleaning cloth, avoid solvents
Safety Warning	Never look directly at the sun
Warranty	Limited lifetime warranty
Country of Origin	China

Frequently Asked Questions - Focus Free Barska

What does 'Focus Free' mean on Barska binoculars?

Focus Free binoculars have a fixed focus system that is pre-set at the factory for a wide range of distances. There is no focusing ring or knob to adjust; you simply look through them and the image is clear at most distances.

How do I clean the lenses of my Barska Focus Free binoculars?

Use the included lens cloth or a soft microfiber cloth. Gently wipe the lenses in a circular motion. For stubborn dirt, add a drop of lens cleaning solution to the cloth, never directly on the lens. Avoid using paper towels or harsh chemicals.

Can I wear eyeglasses while using these binoculars?

Yes, the Focus Free binoculars have fold-down eyecups. If you wear glasses, fold the eyecups down to bring your eyes closer to the lenses and maintain the full field of view.

What is the warranty on Barska Focus Free binoculars?

Barska offers a limited lifetime warranty. If the binoculars are defective in materials or workmanship, they will be repaired or replaced free of charge. Proof of purchase is required.

Are these binoculars waterproof?

No, the Barska Focus Free binoculars are not waterproof. They are designed for general use and should be protected from rain and moisture. Store them in a dry place.

How far can I see with 8x21 binoculars?

With 8x magnification, objects appear 8 times closer. The distance you can see clearly depends on conditions, but typical use includes sporting events, concerts, and nature viewing up to several hundred yards.

What is the field of view of these binoculars?

The field of view is approximately 305 feet at 1000 yards (101 meters at 1000 meters). This means you see a wide area at a distance.

Can I adjust the focus for close-up objects?

Focus Free binoculars have a fixed focus optimized for distances beyond about 20 feet. For very close objects (under 20 ft), the image may be blurry. They are best for medium to far distances.

How do I adjust the interpupillary distance?

Hold the binoculars and gently move the two barrels closer together or farther apart until you see a single circular image. The hinge allows adjustment to match the distance between your eyes.

What should I do if the binoculars get wet?

Wipe them dry immediately with a soft cloth. Remove any moisture from the lenses and body. Do not use heat to dry them. Store in a well-ventilated area to prevent mold.

USER MANUAL Focus Free Barska

III. WATERPROOF/FOG-PROOF (select models)

Your binocular may be designed and built utilizing the latest waterproof and fog-proof technology. Waterproof models are O-ring sealed for complete protection. Fog proof protection is achieved from dry nitrogen purging to remove all internal moisture.

IV. EYECUPS

Your binocular is fitted with either rubber roll-down or rubber pop-up eyecups designed for your comfort and to exclude extraneous external light. If you wear sun/eye glasses, roll down the eyecups. This will bring your eyes closer to the binocular lens thus providing improved field of view.

Fig.4 BINOCULAR EYECUPS

V. INSTRUCTIONS FOR CARE

If handled with care, this binocular will provide years of trouble-free service. Like any fine optical instrument your binocular should be given sensible care. Non waterproof models should not be exposed to excessive moisture.

1. Keep the lens covers (that come with your binocular, except compact models) on the lenses when binoculars are not in use.
2. Store binoculars with the eyecups up. Thus avoiding excessive stress and wear on the eyecups in the down position.
3. Avoid banging and dropping.
4. Store in a cool, dry place.
5. Looking directly at the sun with your binocular may be very harmful to you eyes.

VI. CLEANING

1. Blow away any dust or debris on the lens (or use a soft lens brush)
2. To remove dirt or fingerprints, clean with a soft cotton cloth rubbing in a circular motion. Use of a coarse cloth or unnecessary rubbing may scratch the lens surface and eventually cause permanent damage.
3. For a more thorough cleaning, photographic lens tissue and photographic-type lens cleaning fluid or isopropyl alcohol may be used. Always apply the fluid to the cleaning cloth-never directly on the lens.

VERY IMPORTANT

Never attempt to clean your binocular internally or try to take it apart.

CAUTION: DIRECTLY VIEWING THE SUN OR ANY LIGHT SOURCE WITH THIS OPTICAL DEVICE CAN CAUSE PERMANENT EYE DAMAGE.

©2010 BARSKA® | La Verne, CA 91750

www.barska.com BC152

BINOCULAR INSTRUCTIONS

Black binoculars with no visible text or symbols on the device itself

©2010 BARSKA® | La Verne, CA 91750 models may vary www.barska.com

INSTRUCTIONS FOR USE

This binocular is a precision instrument designed to provide many years of pleasurable viewing. This booklet 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 binoculars.

CAUTION: DIRECTLY VIEWING THE SUN OR ANY LIGHT SOURCE WITH THIS OPTICAL DEVICE CAN CAUSE PERMANENT EYE DAMAGE.

I. EYE ADJUSTMENTS (FIGURE 1)

Fig.1 INTERPUPILLARY DISTANCE ADJUSTMENT

The distance between the eyes, called “interpupillary distance” (IPD), varies from person to person. To achieve perfect alignment of lens to eye, follow these simples 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.

HOW TO ADJUST FOR INDIVIDUAL EYE STRENGTH

Human eyes are as individual as fingerprints. This binocular has a feature which allows you to adjust the binocular to your vision. Follow the focusing instructions for your binocular style.

II. FOCUSING

Binoculars have three primary focusing systems, center, individual and focus-free. "Zoom" binoculars utilize the center focus system.

CENTER FOCUS-has a central focusing wheel between the barrels.

INDIVIDUAL FOCUS-each eyepiece is focused separately. Most typically with waterproof/fog-proof models.

FOCUS FREE-binocular require no focusing adjustment.

nter Foo Wheel
Fig.2 DIOPTER SETTINGS

1. Adjust interpupillary distance (Figure 1)
2. Keep both eyes "open" at all times.
3. Using a lens cover or your hand, cover the objective (front) lens of the side with the "diopter setting"
4. Using the center focus wheel, focus the distant object being viewed.
5. Cover the other objective lens, then view the same object as explained above.
6. Using the "diopter setting" adjustment ring, focus the same object being viewed. Caution should be used as over turning or forcing the diopter eyepiece can damage or cause the eyepiece to break away from the chassis.
7. Your binocular should be adjusted for your eyes. Focus at both far and near distance can now be attained simply by turning the center focus wheel.

INDIVIDUAL FOCUS (select models)

1. Adjust interpupillary distance. Make a note of the number which appears on the central hinge scale. Always re-set your binocular to this position before using. (To see a single

2. Cover right objective (front) lens with your hand. Rotate left eyepiece until image is focused.

3. Follow the same procedure for the right eye. The eyepiece should be turned in a counterclockwise direction for more distant objects. With the image now in focus, make a note of the diopter setting for future use.

FOCUS-FREE (select models)

Focus-free binoculars offer “never needs focusing” optical systems.

"ZOOM" FEATURE (select models)

1. Follow the steps for focusing as outlined under "Center Focus"
2. When focusing a “zoom” binocular, it is best to begin at the highest power. This will provide a more comfortable focus at the lower powers. Set the “zoom” lever at high power.

Fig.2 "ZOOM" SETTINGS

1. Adjust your binocular for individual eye strength using the "diopter setting"

Your binocular is now adjusted properly for your eyes. You may now “zoom” “out” or “in” on any distant object.

Note: to focus on an object at a closer distance, focus on the object at high power first and then adjust the “zoom” lever to the desired lower power. With any “zoom” instrument, better quality images are possible at lower powers.