Celestron Cavalry 71420 Manuale utente

BINOCULARS | JUMELLE

BINOCULARES | FERNGLAS

BINOCOLI

2 IENGLISH

Thank you for purchasing a Celestron Cavalry binocular/monocular. We trust this binocular/

monocular will provide you with years of enjoyment and faithful service. Please read the

instructions carefully before using your binocular/monocular to ensure proper use and care.

CELESTRON®CAVALRY BINOCULARS AND MONOCULAR

Power Button

(7x50)

Battery

Compartment

(7x50)

Calculator

Dial (7x50)

LCD Screen

(7x50)

Mode Button

(7x50)

Tripod Adapter

Threads

Focus

Wheel

Eyecup

Rainguard

Diopter

Adjustment

Ring

Eyepiece

Focus Ring

Eyepiece Cap

Compass

Window

(8x42)

Compass

Window

(7x30)

Objective

Lens Cap

Objective

Lens

ENGLISH I3

The interpupillary distance, or the distance

between the pupils, varies from person to

person. The binocular must be correctly aligned

(adjusted) to the distance between your pupils

to achieve a single, clear image. To adjust this

distance, lift the binocular up to your eyes (using

both hands) and look through them at an object

in the distance. Move the two barrels (halves)

of the binocular closer together or further

apart until you see a single, clear image (Fig. 2).

Check that the interpupillary distance is set

correctly every time you use your binocular.

ADJUSTING THE INTERPUPILLARY DISTANCE (IPD)

Fig. 2

WARNING: Viewing the Sun may cause permanent eye damage. Do not view the Sun with your binoculars/monocular or even with the naked eye.

4 IENGLISH

Models 71420, 71424, and 71426

To ensure a crisp, sharp image the focusing

system of the binocular must be set to

compensate for any differences in your

eyesight. This is achieved by setting the

diopter (located on the right eyepiece) before

use. To set the binocular to your eyesight

follow the instructions below.

1. View an object in the distance through

the binocular.

2. Cover the right objective lens with your hand

or the objective lens cap.

3. Rotate the focus wheel until the image

viewed with your left eye is clear and sharp.

4. Cover the left objective lens with your hand

or objective lens cap.

5. Viewing the same object, adjust the diopter

ring until the image viewed with your right

eye is clear and sharp.

6. Your binocular is now adjusted to your eyes

and focusing on any object can now be

achieved by simply turning the focus wheel.

Diopter Adjustment

Ring

Focus Wheel

Fig. 3

SETTING THE DIOPTER / FOCUSING

ENGLISH I5

Model 71422

The Cavalry 7x50 utilizes an individual focus

system which requires you to focus each

eyepiece to ensure a crisp, sharp image. This

is achieved by setting the diopter (located on

each eyepiece) before use. Once the binocular

is adjusted to your eyesight at a distance of

approximately 100 yards, the binocular will be in

focus without additional adjustment to an inﬁnite

distance (for distances closer than 100 yards

readjustment may be necessary). To set the

binocular to your eyesight follow the instructions

below.

1. View an object at a distance of 100 yards

or more through the binocular.

2. Cover the right objective lens with your hand

or the objective lens cap.

3. Rotate the left eyepiece until the image

viewed with your left eye is clear and sharp.

4. Cover the left objective lens with your hand

or objective lens cap.

5. Viewing the same object, rotate the right

eyepiece until the image viewed with your

right eye is clear and sharp.

6. Your binocular is now adjusted to your eyes

and refocusing is not necessary for objects

at 100 yards or more. Adjustment may be

needed for distances closer than 100 yards.

Diopter Adjustment

Ring

Fig. 4

6 IENGLISH

EYECUP ADJUSTMENT

The Cavalry models 71420 and 71424 feature

twist-up eyecups and models 71422, 71426

and 71215 feature foldable rubber eyecups to

accommodate both eyeglass and non-eyeglass

wearers. If you do not wear eyeglasses, leave

the rubber eyecups in the up position or twist

the eyecups counterclockwise until they reach

the up position. If you wear eyeglasses, make

sure that the eyecups are in the down position

to obtain the maximum ﬁeld of view. The twist-

up eyecups can be set at positions between

fully up and down which may suit some users

better. When done observing, make sure the

rubber eyecups are in the up position for storage.

Model 71215

The focus of the Cavalry 8x42 monocular

is adjusted by simply turning the focus ring

located in front of the eyepiece.

Tip: Eyeglasses worn for nearsightedness should be worn when using a

binocular/monocular as you may not be able to obtain focus at inﬁnity

without them.

Focus Ring

Fig. 5

Fig. 6bFig. 6a

ENGLISH I7

TRIPOD ADAPTABILITY

The Cavalry binoculars feature built-in threads

that allow the binocular to be attached to a

tripod using a binocular tripod adapter. These

threads can be accessed by unscrewing the

logo plate found on the front of the hinge (Fig. 7).

To attach the binocular to a tripod, thread the

adapter into the binocular and attach the other

end of the adapter to a photographic tripod.

Mounting the binocular on a tripod allows for

added stability and comfort during prolonged

viewing.

WATERPROOF / FOGPROOF

The Cavalry Series is waterproof and ﬁlled with dry nitrogen gas to prevent the housing from

fogging internally.

Fig. 7

8 IENGLISH

USING THE RETICLE

CALCULATING DISTANCE

Cavalry models 71420, 71422 and 71215

have an integrated reticle that can be used to

estimate size and distance. The reticle is divided

into 10mil increments with 5mil marks between

each 10mil increment. Each 10mil increment

is indicated using single digit numbers (1, 2,

3, etc.). For ﬁner ranging ability the last 5mils

of the reticle are divided into 1mil and 0.5mil

increments.

Note: The reticle varies slightly from model to model but this does not

affect how distance and size are calculated.

Using the simple formulas below, you can

effectively determine the distance to the

target if its size is known.

Target Size (Yards) x 1000

Measured Mils

= Range (Yards)

Fig. 8

Fig. 9

ENGLISH I9

The Calculator Dial located on the left objective

barrel can be used to determine distance quickly

and easily without using the formulas above. The

calculator is composed of a triangular indicator

marked “Angle”, a rotating ring and three number

scales. The ﬁrst two scales are on the rotating

ring; the ﬁrst scale is the “Angle” measured in

MILS and the second scale is the “Object Size”.

The third scale below the rotating ring is the

“Distance” reading. To use the calculator, look

through the binoculars and measure the height

of an object using the reticle. Using the same

example above, a man is seen that measures

20mils tall. Using the rotating ring, align the

triangular indicator to the number 2 (20mils) on

the Angle scale. Estimating that the man is 6

feet tall (2 yards), locate the number 2 on the

“Object Size” scale. Each number on the “Object

Size” scale will correspond to a number on the

ﬁxed distance scale. In this example the 2 on the

distance scale is lined up with 100, so the man

measured in the binocular is 100 yards away.

For example:

You range a 6-foot tall man (2 yards) that is

20mils tall and you want to know the distance

to him.

USING THE CALCULATOR DIAL (MODEL 71422 ONLY)

Target Size (Inches) x 27.8

Measured Mils

= Range (Yards)

2 (Yards) x 1000

20Mils

= 100 Yards

Target Size (Meters) x 1000

Measured Mils

= Range (Meters)

10 IENGLISH

CALCULATING SIZE (HEIGHT AND WIDTH)

Using the simple formulas below, you can

effectively determine the size of a target if

the distance to the target is known.

For example:

You are 300 meters away from a tank that

measures 15 miles tall and 20mils wide and

you want to know the size of the tank.

Range (Yards) x Measured Mils

1000

= Target size (Yards)

Range (Meters) x Measured Mils

1000

= Target size (Meters)

300 (Meters) x 15 Mils

1000

= 4.5 Meters tall

300 (Meters) x 20 Mils

1000

= 6 Meters wide

Range (Yards) x Measured Mils

27.8

= Target size (Inches)

Fig. 10

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