BN 7x50 C II - Binoculars MINOX - Free user manual and instructions

Product Type	Binoculars
Brand	Minox
Model	BN 7x50 C II
Magnification	7x
Objective Lens Diameter	50 mm
Prism System	Porro
Exit Pupil	7.14 mm
Field of View at 1000 m/yds	131 m / 393 ft
Diopter Correction	-4 to +6 diopters
Eye Relief	21 mm
Brightness Index	51
Twilight Number	18.7
Focusing System	Individual eyepiece adjustment
Compass	Analog compass with illuminator
Reticle	Analog MIL crosshairs
Waterproof	Buoyant, waterproof down to 3 m (0.3 bar)
Nitrogen Filled	Yes
Body Material	Makrolon with rubber armoring
Operating Temperature	-10 °C to +50 °C
Battery Type	2 x LR43
Dimensions (H x W x D)	163 x 223 x 78 mm
Weight	Approx. 1010 g (35.6 oz)
Order Number	62256
Warranty	2 years
Included Accessories	Neoprene case, neoprene neck strap, eyepiece cap, objective lens cap

Frequently Asked Questions - BN 7x50 C II MINOX

How do I adjust the interpupillary distance on the Minox BN 7x50 C II?

The binoculars have a folding bridge. Adjust the two eyepieces until you see one round full circle when looking through them. This ensures proper alignment with your eyes.

How do I focus the binoculars?

The Minox BN 7x50 C II has individual eyepiece focusing. Close your right eye, adjust the left eyepiece ring for a sharp image of an object at about 50 m. Then close your left eye and adjust the right eyepiece. The diopter range is -4 to +6.

Can I use these binoculars with eyeglasses?

Yes. Fold down the rubber eyecups to see the full field of view. Without glasses, leave the eyecups extended.

How do I measure distance using the reticle?

Use the MIL crosshairs. With known height or length of an object, calculate distance as: Distance (m) = (Object height (m) x 100) / Elevation angle (MIL). For example, a 80 m lighthouse at 6.7 MIL gives 1194 m.

How do I use the compass?

The analog compass shows bearings in degrees. North is 360°, east 90°, etc. Use the illuminator switch for dark conditions. Do not cover the light opening on top.

What batteries does the compass use and how do I replace them?

It uses 2 x LR43 batteries. Open the screw cap on the bottom counterclockwise, replace batteries, then tighten clockwise.

How do I clean the binoculars?

Use a soft damp cloth for the body. For lenses, use a brush for dust and an optical lens cloth with cleaner for fingerprints. Avoid excessive heat.

Can I mount the binoculars on a tripod?

Yes. Remove the cap screw from the tripod thread on the bottom and attach a tripod mount (e.g., MINOX order 69727).

What is the serial number used for?

The serial number is on the bottom. Record it for warranty or loss claims.

Is the Minox BN 7x50 C II waterproof?

Yes, it is buoyant and waterproof down to 3 meters (0.3 bar). It is also nitrogen-filled to prevent fogging.

USER MANUAL BN 7x50 C II MINOX

1.000 m/1.000 yards 131 m/393 ft.

Introduction 17 General care recommendations 25

Get to know your binoculars 17 - Binocular case included in scope of delivery 25

Controls 17 - Cleaning your binoculars 25

General instructions 18 - Cleaning the objective lenses

eparing your binoculars 18 and eyepiece lenses 26 Attaching the peak step 18 Serial number 26

- Attaching the neck strap 18 - Serial number 26 Attaching the neck strap 19 - Serial number 26

- Attaching the eyepiece cap 18 Technical Data 26 - Objective lens cap 19 Helpful advice on the use

- Objective lens cap 18 - Adjusting the binoculars 19 helpful advice on the use of your binoculars 26

Adjusting the bidoculars 13 of your bidoculars 20 - Intermunillary distance adjustment. 19 Conditions of warranty 27

- Interpapillary distance adjustment 19 - Focusing 19 Conditions of Warranty Extended MINOX Warranty Service 27

- Using the binoculars with

and without eyeglasses 19

- Attachment to a tripod mount 20

Inserting and changing the batteries 20

Distance measurement 21

- Using the MIL crosshairs for distance

measurement (telemetry system) 21

- Measuring the elevation angle 22

- Measuring the azimuth (horizontal angle) 23

- Using the compass 23

Introduction

Congratulations!

With the purchase of these MINOX binoculars you have acquired a product that has been manufactured to the highest optical standard with high precision mechanics. These instructions are to help you benefit from the full performance range of your MINOX binoculars.

Enjoy your new MINOX product!

Get to know your binoculars

- Porro prism binoculars

• Individual eyepiece adjustment

• Buoyant, waterproof down to 5 meter (0,5 bar)

• No fogging up and nitrogen-filled

• Sturdy, lightweight Makrolon body

• Non-slip rubber armoring

• Analog compass with illuminator and

analog reticle plate

• Diopter correction from -4 to +6 diopters

Controls

(see also illustration on page 2)

1. Folding eyecups

2. Eyepiece ring

3. Neck strap bracket

4. Compass housing

5. Light opening

6. Compass illuminator switch

7. Tripod thread cap screw

8. Battery compartment

9. Battery compartment cover

10. Objective

11. Eyepiece cap

12. Loop for fastening the neck strap

13. Objective lens cap

14. Bracket for objective lens cap

Warning: As with all binoculars, do not use your MINOX binoculars to look at the sun or other sources of bright light in order to prevent any eye injury.

General instructions

Preparing your binoculars

The scope of delivery of your MINOX BN 7x50 C II includes a neoprene neck strap. We recommend that you wear the neck strap whenever you are using your MINOX binoculars.

Note: By wearing the strap you can avoid damage caused by dropping the binoculars.

Attaching the neck strap

Thread the strap through the bracket (3) on the body of the binoculars. Pull the end of the strap back to the buckle and then thread it through the buckle from behind to secure the strap. Fasten the neck strap on the other side of the binoculars in the same way. Adjust the neck strap to a comfortable length once you have fastened it on both sides.

Attaching the eyepiece cap

Connect the eyepiece cap (11) to the neck strap via the loop (12) on the left side. The eyepiece cap protects the optics on the eyepieces against foreign particles, rain, dust and sand. Remove the eyepiece cap from the eyepiece when you want to use your binoculars. This cap then hangs down out of the way on the left side of the strap.

Objective lens cap

Use the objective lens cap (13) to protect the objective lenses of the BN 7x50 C II against foreign particles, rain, salt water, dust and sand. You can attach this lens cap to your binoculars by placing the loop on the objective lens cap bracket (14) over the cap screw of the tripod thread (7) and threading it through until the loop is completely inserted behind the tripod thread. Remove the lens cap from the objective lens when you want to use your binoculars and let it hang down. If you want to remove the lens cap from your BN 7x50 C II completely, pull the loop of the lens cap bracket carefully out from behind the tripod thread and pull the loop off the cap screw of the tripod thread (7).

Adjusting the binoculars

Your MINOX BN 7x50 C II should be adjusted to your individual needs before use. Observe the following steps for correct use.

Interpupillary distance adjustment

Your MINOX BN 7x50 C II has a folding bridge that you can use to adjust the two eyepieces to the distance between your eyes. Your MINOX BN 7x50 C II is properly adjusted to the interpupillary distance when you can see one round full circle when you look through your MINOX binoculars. Adjust your MINOX binoculars until the two circles are superimposed to form one full circle.

Focusing

Your MINOX BN 7x50 C II has an individual eyepiece focusing system. The advantage of this feature is that all observed objects within a range from 12 meters to infinity can be seen as a pin sharp image without having to readjust the focusing of your binoculars to close or far away objects. The adjust - able range of the individual eyepieces is -4 up to +6 diopters.

Proceed as follows to ensure optimum adjustment to your vision: Choose an observation object at a distance of about 50 meters.

First close your right eye. Look through the left eyepiece of your binoculars with your left eye. Turn the left eyepiece ring in clockwise or counterclockwise direction until you see a sharp image. Now close your left eye and adjust the right eyepiece in the same way by turning the right eyepiece ring. Your binocular is now adjusted to your individual vision.

Both eyepieces have a diopter scale. Remember your individual diopter setting for the left and right eyepiece or mark it with a permanent marker. In this way you will be able to quickly readjust the binoculars to your vision if, for example, another person has used them and changed the settings.

Using the binoculars with

and without eyeglasses

Your MINOX BN 7x50 C II is fitted with folding eye-cups of flexible rubber. These can be used to adjust the distance to your eye, depending on whether you are wearing glasses or not. Those users not wearing glasses leave the folding eyecups in extended position

(as purchased) when looking through the binoculars. In this condition the pupil of your eye is at the correct distance to the ocular lens. This adjustment also ensures a steady positioning of the binoculars against the eye and minimizes stray light. When looking through your MINOX BN 7x50 C II wearing glasses you must fold down the rubber eyecups to enable you to see the entire field of view right into the edges.

Warning: Do not use your MINOX binoculars to look at the sun or other bright sources of light to prevent any eye injury.

Attachment to a tripod mount

To ensure steady and fatigue-free viewing you can mount your MINOX BN 7x50 C II on a tripod using the tripod thread integrated in the body. For this purpose we recommend the MINOX tripod mount (order number 69727) that is available from our range of accessories.

To use the tripod mount first remove the cap screw (7) from the tripod thread on the underside of the MINOX BN 7x50 C II. Connect the MINOX tripod mount to the thread turning it in clockwise direction.

Keep the cap screw (7) in a safe place and screw it back into the tripod thread after removing the tripod mount.

Inserting and changing the batteries

Your MINOX BN 7x50 C II has a compass with a display that can be illuminated in the dark at the press of a button. For this the compass requires two batteries of the type LR 43.

To insert or replace the batteries proceed as follows:

1. Open the screw cap on the battery compartment on the bottom of the binoculars by turning it in counterclockwise direction (Fig.1)
2. Take the old batteries out of the battery compartment. (Fig. 2) and insert two new batteries of type LR 43 in the battery compartment (pay attention to correct poling).
3. Tighten the screw cap on the battery compartment again by turning it in clockwise direction.

Fig. 1 Fig. 2

Distance measurement

Using the MIL crosshairs for distance measurement (telemetry system)

With the MINOX BN 7x50 C II you can use the analog reticle plate (crosshairs) to determine the distance of observed objects. Distance measurement can be carried out with the aid a simple equation, as long as the height or length of the observed object are known with sufficient accuracy: in practice the size (height/length) is usually known because the observed objects are mostly people, buildings or vehicles.

Example for calculating the distance

The height of the lighthouse is 80 meters. The value read off the reticle plate is 6.7.

This is then calculated as follows:

100 x 80 meters divided by 6.7, resulting in a distance of 1,194 meters.

Distance (in m) =

Height of observed object (m) x 100

Elevation angle of observed object

Distance (in m) =

Length of observed object (m) x 100

Azimuth angle of observed object

Elevation angle = Vertical angle

Azimuth angle = Horizontal angle

Measuring the elevation angle (vertical angle) with the vertical scale reading on the MIL crosshairs

The elevation angle measures the angle between the horizontal zero line, beginning at the starting point of the observer and extending towards the observed object, and the height of a defined point on the observed object (in the illustration e.g. the base of the lighthouse on the horizontal zero line and the top of the lighthouse as defined point). If the elevation angle is within the range of the vertical scale of 8 MIL, you must first align the vertical scale in the crosshairs at the foot of the lighthouse to "0". The elevation angle of the lighthouse in the illustrated example can now be read off directly as 6.7 MIL, wherein 1 MIL corresponds to 1/1000 inch. If the elevation angle of the observed object lies outside of the vertical scale of 8 MIL, to determine the elevation angle you must simply proceed in steps and add up the individually determined values.

Example for calculating the height of the object

It is a prerequisite to know the distance. This is 1,194 meters in our example. The scale value read from the reticle plate is 6.7.

This is then calculated as follows:

1,194 meters x 6.7 divided by 100, resulting in an object height of 80 meters.

Height of observed object (m) = Distance (m) x elevation angle 100

Length of observed object (m) = Distance (m) x azimuth angle 100

Elevation angle = Vertical angle Azimuth angle = Horizontal angle

Measuring the azimuth (horizontal angle)

The azimuth measures the horizontal angle and corresponds to the horizontal deviation from the north. Using the MIL crosshairs you can read off the horizontal scale value. In the illustration the azimuth of the observed object at 6 MIL (4 MIL + 2 MIL) can be simply determined using the horizontal scale value (see measurement of elevation angle).

Determining the length of an observed object when the distance is known

On the basis of the measured elevation angle or azimuth angle the height or length of an observed object can be determined using the following equation:

Example for calculating the object length

It is a preprequisite to know the distance. In our example this is 1,100 meters. The scale value read off the reticle plate is 6.0.

This is then calculated as follows:

1,100 meters x 6.0 divided by 100, resulting in an object length of 66 meters.

Length of observed object (m) = Distance (m) x azimuth angle 100

Azimuth angle = Horizontal angle

Using the compass

Your MINOX BN 7x50 C II has an integrated analog compass that shows the bearings in degrees. North has an azimuth angle of 360°, east is 90°, south is 180° and west has an azimuth angle of 270°.

Determining your position with the compass

With the following example your can determine your position using a map and your compass binoculars.

In the illustration (Fig. 3) the arrow in the middle indicates the boat's direction of travel, in this case roughly due south. When you look through your binoculars the compass shows the observed buoy at 190^irc . The difference between South (180^irc) and the observed buoy (190^irc) is 190^irc - 180^irc = 10^irc . This is your first reference value for position determination. To complete the determination of your exact position you need a second reference value. In the following illustration (Fig. 4) the indicated and observed light-house is at 120^irc (300^irc - 120^irc) from the boat. You can now determine your boat's exact position on the map by superimposing the two course lines. Your boat's position is exactly where the two lines cross.

Note: Do not cover the light opening for the compass (5) with your fingers, as you with otherwise not be able to read the bearings.

Compass illuminator switch

The compass of your MINOX BN 7x50 C II has an illuminator switch so that you can also read the compass in the dark. When you press the switch the compass display has a backlight in red. There is no illumination when the switch is not pressed.

Fig. 3 Fig. 4

General care recommendations

Follow the following care recommendations to ensure maximum enjoyment and excellent viewing for many years with your MINOX binoculars.

Binocular case included in scope of delivery To protect your binoculars when not in use or when traveling we recommend that you keep them in the provided neoprene case.

Cleaning your binoculars

Keep your binoculars clean and dry. Avoid exposure to excessive heat. Remove dust and foreign particles from the body using a soft damp cloth. If you are using your binoculars at sea or near salt water we strongly recommend rinsing them off with fresh water after use. Over time, sea salt can damage the objective lenses and the optical quality of your binoculars.

Cleaning the objective lenses and eyepiece lenses

Contamination such as dust, foreign particles and grease from fingerprints impairs the imaging quality (sharpness and contrast) of your MINOX binoculars. Remove minor soiling and particles on the lenses us-

ing a soft brush. More severe soiling or fingerprints on the lens surfaces can be removed using and optical lens cloth and lens cleaner solution. We recommend the MINOX Optical Cleaning Kit (order number 69731) for cleaning your binoculars. Other suitable optical cleaning solutions can also be purchased from specialist dealers.

Serial number

On the bottom of every pair of MINOX binoculars you will find the "individual" serial number. It is important to make a record of this number and keep it in a safe place in case of any loss.

Helpful advice on the use of your binoculars

Never expose your binoculars to severe heat for prolonged periods. This can cause damage to the amoring or to the eyecups.

Avoid places such as the dashboard or the rear shelf in motor vehicles for storing binoculars. These places are not suitable as exposure to the sun directly behind glass causes extremely high temperatures that can damage your binoculars.

Always use the provided neck strap and avoid damage caused by dropping the binoculars.

Never walk away when the binoculars are mounted on a tripod.

Always remove the binoculars before moving out of the tripod range.

Keep your binoculars in the provided case in a dry place and at a moderate temperature if you are not using them for any length of time.

Technical Data

Magnification 7x

Prism system Porro

Compassanalogcompass,

Lens diameter 50 mm

Exit pupil

Field of view at

1,000 yards / 1,000 m

Diopter correction

Eye relief

Brightness Index

Twilight number

Operating temperature

Watertight

Height x Width x Depth

Weight

Order number

analog reticle plate

7.14 mm

393 ft./131 m

-4/+6 Dioptrien

21 mm

51

18,7

-10 °C up to +50 °C

buoyant, waterproof down

to 10 ft. / 3 m (0.3 bar

163 x 223 x 78 mm

approx. 35.6 oz / 1,010 g

62256

Conditions of warranty

With the purchase of this MINOX product you have acquired a product which has been manufactured and checked to special quality standards. For this product the MINOX GmbH provides warranty of 2 years. The period commences on the date of purchase from an authorized dealer and the warranty is subject to the following conditions:

1) During the warranty period we shall deal with complaints based on faulty manufacture (free of charge) by repair, replacement of defective parts or replacement by an identical flawless product at our own discretion. Consequential claims, no matter what kind of what legal argument in connection with this warranty, cannot be accepted.

2) Claims under warranty are null and void, if the defect has been caused by improper handling – which also can include the use of non-MINOX accessories – if the MINOX product is serviced by unauthorized persons or workshops, or if the serial number has been obliterated.

3) Warranty claims can only be made by submission of the typewritten sales slip of an authorized dealer.

4) When submitting claims under warranty please return the MINOX product together with the type-written sales slip and a description of the claim to the MINOX GmbH or MINOX agency.

5) Tourists may, if required, make use of the Agency of the country in which they are travelling (within the terms of the Warranty of the MINOX GmbH) by presenting the typewritten sales slip.

Extended MINOX Warranty Service

Take advantage of the extended MINOX product warranty and register your MINOX product. Find out more at www.minox.com/service.

Design subject to alterations without notice.

MINOX is a registered trademark of MINOX GmbH, Wetzlar.

MINOX GmbH

Walter-Zapp-Str. 4

D-35578 Wetzlar, Germany

Tel.: [phone] / 917-0

Fax: [phone] / 917-612

E-Mail: [e-mail]

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