Celestron Upclose G2 20x50 Manual

Celestron Kikkert Upclose G2 20x50

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Side 1/8

INSTRUCTION MANUAL

PORRO PRISM BINOCULAR

ROOF PRISM BINOCULAR

www.celest ron.com

BINOCULARS

Thank you for purchasing Celestron binoculars and we hope you will have

many years of pleasure with them. To maximize your enjoyment of the bin-

oculars, please read these instructions on use and care before using them.

1. Adjusting the Interpupillary Distance (IPD) Since the distance

between the eyes (speciﬁcally, the distance between the centers of the

pupils) varies among individuals, the two eyepieces of the binoculars must

be correctly aligned (adjusted). This is called adjusting the interpupillary

distance. To adjust this distance, lift the binoculars up to your eyes (using

both hands) and look through them at an object in the distance. Move the

two halves of the binoculars about the hinge until you see one clear circle

of image through both eyes.

2. Adjusting Focus Since most people have a variance of vision from

their left eye to their right eye, you must adjust the focusing system. Use

the following steps to achieve focus: (1) Close your right eye and look

through the left side of the binoculars with your left eye at the subject

matter. Rotate the center focusing wheel until the image appears in sharp

focus; (2) Close your left eye and look through the right eyepiece (called

the diopter). Rotate the right eyepiece until the image appears in sharp

focus; (3) Now look through both eyepieces with both eyes open. Since

you’ve already adjusted the right eyepiece, use only the center focusing

wheel to refocus on a new object at a different distance.

IPD Scale

IPD

Porro Binocular

Roof Binocular

Note: If your binocular has a diopter indicator, please note the setting for

later use for faster focus adjustment.

For Zoom Binocular models – to increase or decrease power, move the

zoom lever. To adjust focus you ﬁrst zoom the binoculars to the highest

power and then adjust the focusing system as above. Then, when zooming

in and out your binoculars will be in focus.

Hint: Eyeglasses worn for nearsightedness should be worn when using

binoculars as you may not be able to reach a sharp focus at inﬁnity

without them.

3. Set the Rubber Eyecups Leave the Rubber Eyecups up if you do not

wear eyeglasses but fold them down if you do wear eyeglasses to obtain

the maximum ﬁeld of view. When done observing, fold the eyecups up

for storage.

4. Tripod Adaptability Porro Prism binoculars feature a built-in tripod

adapter ﬁtting. On these models, a threaded screw hole is underneath a

cap. To attach a binocular tripod adapter, remove the cap and then thread

the screw from the binocular tripod adapter into the threaded screw hole.

The other end of the binocular tripod adapter attaches to a photographic

tripod. Mounting binoculars this way allows for added stability and comfort

especially when viewing at high powers.

ROOF PRISM BINOCULAR

Diopter

Adjustment

Objective Lens

Eyepiece

Focuser

Rubber Eyecup

PORRO PRISM BINOCULAR

Diopter

Adjustment

Objective

Lens

Tripod

Adapter

Thread

Zoom Lever

(for Zoom Models)

Eyepiece

Focuser

Rubber

Eyecup

5. Care and Cleaning Binoculars do not need routine maintenance other

than making sure that the objective lenses and eyepieces are kept clean.

If repairs become necessary, they should be serviced by the manufacturer

or a qualiﬁed binocular repair company. Collimation (optical alignment)

is the biggest concern with binoculars. If your binoculars are roughly

handled or dropped, there is a good chance that the collimation will be

out and they should be serviced. Dirty objectives and/or eyepieces mean

less light transmission and loss of brightness as well as unsharp images.

Keep your optics clean ! When not using your binoculars store them in

the case provided. Avoid touching the glass surfaces but if ﬁngerprints

(which contain mild acid) get on them, they should be cleaned as soon as

possible to avoid damaging the coatings. To clean the optical surfaces, we

recommend a lens/optics cleaning kit available at most photo or optical

shops and follow the instructions provided closely. If you have a lot of dust

or dirt accumulated, brush it off gently with a camel’s hair brush and/or

utilize a can of pressurized air before using the cleaning kit. Alternately,

you could use the Celestron LensPen (# 93575) made especially for

cleaning binoculars. Never attempt to clean your binoculars internally or

try to take them apart!

6. Caution! Viewing the sun may cause permanent eye damage.

Do not view the sun with your binoculars or with the naked eye.

7. Problems or Repair If warranty problems arise or repairs are neces-

sary, contact the Celestron technical support department if you live in

the U.S.A. or Canada. If you live elsewhere, please contact the Celestron

Produkt Specifikationer

Mærke:	Celestron
Kategori:	Kikkert
Model:	Upclose G2 20x50
Bredde:	81 mm
Dybde:	185 mm
Højde:	160 mm
Vægt:	794 g
Produktfarve:	Sort
Forstørrelse:	20 x
Øjenlindring:	7 mm
Prisme-type:	BK-7
Udgangspupil:	2.5 mm
Tilsyneladende synsfelt:	3.2 °