Orion 51464 User Manual download pdf (Page 2)

Roll-Down Eyecups

Orion Astro-Binoculars feature fold-down eyeguards. The eye-

guards are usually left in the up position for use without eyeglass-

es, as this helps prevent glare (unwanted stray light) from enter-

ing between your eye and the eyepieces. To use the binoculars

with eyeglasses, you will need to fold the eyeguards down in order

to get your eyes close enough to the eyepieces to see the entire

field of view.

Cleaning and Care of Binoculars

The lens surfaces of Orion binoculars are coated with anti-reflec-

tion coatings that can be damaged with careless handling. Avoid

touching lens surfaces with fingers or any coarse material. All

optics, even if stored, should be cleaned at least once a year or

whenever they are dirty. The dust that builds up on coatings pro-

motes mold growth, which etches glass and destroys coatings.

Avoid over-cleaning; it can damage the coatings. Always use lens

cleaning tissue and fluid that are specifically designed for multi-

coated lenses. Do not use fluids or tissues that are for eyeglasses

or household use.

To clean the binocular lenses, first blow off the lens with a blower

bulb or gently wipe the lens with a lens cleaning brush to remove

the larger particles. Put a few drops of lens cleaning fluid on a

fresh piece of lens cleaning tissue (never on the lens) and gen-

tly wipe the lens. Quickly wipe the excess fluid with a new, dry

piece of lens cleaning tissue. For larger lenses, clean only a small

area at a time, using a new tissue each time. On excessively dirty

lenses, wipe across the lens using one stroke for each tissue,

alternating wet and dry. Always avoid excessive pressure or rub-

bing when wiping, as wiping too hard can scratch the lens.

Storage and Cold Weather

Orion Astro-Binoculars come with a soft case for storage and

transport. We recommend always keeping the binoculars in their

case with the cover caps on when not in use.

All optics, when exposed to excessive temperature changes or

high humidity, have the potential to fog up. Always allow the optics

to slowly adjust to cold weather by storing the instrument (in its

case) in a cold area such as an unheated garage or the trunk of a

car for a few hours before use. When bringing the instrument back

inside a warm house, store it in a cool area for one to two hours.

It is very important to open up the case, remove the binoculars

from the case, remove the cover caps, and let everything dry out

overnight. The binoculars should be stored in a cool, dry place to

prevent mold growth, which can damage the optics. This is not

covered by the warranty.

Specifications

#51463 15x70 Astro-Binoculars

Magnification 15x

Objective lens aperture 70mm

Focusing Center Focus

Eye relief 18mm

Field of View 4.4°

Close Focus 30 ft

Prisms BAK-4, Porro

Anti-reflection coatings Fully Multi-coated

Eyeguards Fold-down, rubber

Weight 4 lbs.

Tripod compatibility Fits standard photo tripods via

included L-Bracket

#52179 20x70 Astro-Binoculars

Magnification 20x

Objective lens aperture 70mm

Focusing Center Focus

Eye relief 17mm

Field of View 3.2°

Close Focus 45 ft

Prisms BAK-4, Porro

Anti-reflection coatings Fully Multi-coated

Eyeguards Fold-down, rubber

Weight 4 lbs.

Tripod compatibility Fits standard photo tripods via

included L-Bracket

#51464 20x80 Astro-Binoculars

Magnification 20x

Objective lens aperture 80mm

Focusing Center Focus

Eye relief 17mm

Field of View 3.2°

Close Focus 60 ft

Prisms BAK-4, Porro

Anti-reflection coatings Fully Multi-coated

Eyeguards Fold-down, rubber

Weight 4.7 lbs.

Tripod compatibility Fits standard photo tripods via

integrated tripod post

One-Year Limited Warranty

Orion Astro-Binoculars are warranted against defects in materials or workmanship for a period of one year from the date of purchase. This

warranty is for the benefit of the original retail purchaser only. During this warranty period Orion Telescopes & Binoculars will repair or replace,

at Orion’s option, any warranted instrument that proves to be defective, provided it is returned postage paid to: Orion Warranty Repair, 89

Hangar Way, Watsonville, CA 95076. If the product is not registered, proof of purchase (such as a copy of the original invoice) is required.

This warranty does not apply if, in Orion’s judgment, the instrument has been abused, mishandled, or modified, nor does it apply to normal

wear and tear. This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state. For further

warranty service information, contact: Customer Service Department, Orion Telescopes & Binoculars, 89 Hangar Way, Watsonville, CA 95076;

(800)-676-1343.

Orion Telescopes & Binoculars

OrionTelescopes.com

89 Hangar Way, Watsonville, CA 95076

Customer Support Help Line (800) 676-1343

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