Porro 20x50 - Binoculars BRESSER - Free user manual and instructions

Product Type	Binoculars
Brand	BRESSER
Model	Porro 20x50
Magnification	20x
Objective Lens Diameter	50 mm
Prism Type	Porro
Field of View	Approx. 2.5° (at 1000 m: 44 m)
Close Focus	Approx. 15 m
Exit Pupil	2.5 mm
Eye Relief	12 mm
Weight	Approx. 800 g
Dimensions (LxWxH)	180 x 65 x 170 mm
Focus System	Center focus
Waterproof	No (splash-proof only)
Tripod Adaptable	Yes (via optional adapter)
Included Accessories	Carrying case, neck strap, lens caps, cleaning cloth
Recommended Use	Nature observation, astronomy, long-distance viewing

Frequently Asked Questions - Porro 20x50 BRESSER

How do I clean the lenses of my BRESSER Porro 20x50 binoculars?

Use a soft brush to remove dust, then a microfiber cloth with a bit of lens cleaning solution. Avoid rubbing hard to prevent scratches.

How do I adjust the focus?

First adjust the diopter ring on the right eyepiece to compensate for vision differences, then use the center focus wheel to sharpen the image.

Why is the image blurry even after focusing?

Check if the lenses are clean. Also ensure the interpupillary distance is correctly set (fold the barrels until you see a single circular field). If using with glasses, adjust eye relief.

Can I mount these binoculars on a tripod?

Yes, the central hinge has a threaded socket for a tripod adapter (not included). You can purchase a compatible adapter separately.

Can I use these binoculars with glasses?

Yes, the eye relief is 12 mm, which is sufficient for most glasses. For better comfort, fold down the rubber eyecups if needed.

What does 20x50 mean?

20x indicates 20 times magnification, and 50 mm is the diameter of the objective lenses. Larger objective lenses gather more light for brighter images.

How should I store the binoculars when not in use?

Store in a dry, cool place inside the carrying case. Avoid extreme temperatures and humidity. Remove batteries if any (not applicable here) and keep lens caps on.

How do I adjust the interpupillary distance?

Hold the binoculars and gently fold the two barrels around the central hinge until you see a single circular field without shadows. The scale helps set your IPD.

Are these binoculars suitable for astronomy?

Yes, the 20x magnification and 50 mm objective make them good for lunar observation and bright deep-sky objects. A tripod is recommended for steady views.

What does Porro prism mean?

Porro prism refers to the prism type that gives binoculars a classic offset shape. It provides good depth perception and is typically more affordable than roof prism designs.

USER MANUAL Porro 20x50 BRESSER

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Porro

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Compact

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Roof

MANUAL DOWNLOAD:

GB Visit our website via the following QR Code or web link to find further information on this product or the available translations of these instructions.

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MANUAL DOWNLOAD:

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INHALT/INDEX:

Manual Download 2-3

Porro 6-7

Roof 8-9

Compact 10-11

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SERVICE AND WARRANTY:

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www.bresser.de/warranty_terms

i

BINOCULARS GUIDE:

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BINOCULARS FAQ:

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www.bresser.de/faq

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(GB) WARNING: Never use this device to look directly at the sun or in the direct proximity of the sun. Doing so may result in a risk of blindness.

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DE Teileübersicht

1. Central focusing wheel
2. Eyepiece lens
3. Objective lens
4. Centre axle
5. Dioptre adjustment
6. *Zoom lever

1. Central focusing wheel
2. Eyepiece lens
3. Objective lens
4. Centre axle
5. Dioptre adjustment

Technical diagram of a mechanical device with numbered components and a magnified inset showing internal structure.

DE Teileübersicht

1. Central focusing wheel
2. Eyepiece lens
3. Objective lens
4. Centre axle
5. *Zoom lever

Microscopic image showing a chromosome before and after division, labeled as Fig. 3 (no text or symbols on the image itself)

Diagram of a computer monitor with an arrow indicating rotational motion, labeled Fig. 5a (no text or symbols on the diagram itself)

Diagram of a mechanical component with a curved arrow indicating rotation, labeled Fig. 5b (no text or symbols on the diagram itself)

Stativadapter / Tripod Mount Adapter (nicht enthalten/not included)

Remove front cap and attach as shown Fig. 6

• Risk of blindness — Never use this device to look directly at the sun or in the direct proximity of the sun. Doing so may result in a risk of blindness.
• Choking hazard – Children should only use the device under adult supervision. Keep packaging material, like plastic bags and rubber bands, out of the reach of children, as these materials pose a choking hazard.
• Risk of fire — Do not place the device, particularly the lenses, in direct sunlight. The concentration of light could cause a fire.
• Do not disassemble the device. In the event of a defect, please contact your dealer. The dealer will contact the Service Centre and can send the device in to be repaired, if necessary.
• Do not expose the device to high temperatures.
• The device is intended only for private use. Please heed the privacy of other people. Do not use this device to look into apartments, for example.

Eyepieces for spectacle wearers P R C

Depending on the model, your binoculars are equipped with either twist-up eyecups or rubber eyecups. Since there is a larger distance between the binocular eyepiece and the pupil for those wearing glasses, both eyecup varieties can be adjusted individually (Fig. 5).

Twist-up Eyecups (Fig. 5a)

Screw in the twist-up eyecups (2a) to use the binoculars while wearing glasses. If you are not wearing glasses, unscrew the eye-cups to achieve the required distance from the pupils.

OR

Rubber Eyecups (Fig. 5b)

To use the binoculars while wearing glasses, turn the rubber eyecups (2b) towards the sides and down. If you are not wearing glasses, leave the eyecups in the upright position to achieve the required distance from the pupils.

Adjusting the eyepiece distance P R C

The distance between the eyes differs between individuals. To achieve perfect interaction between your eyes and the eyepieces of your binoculars set the angle at the centre of the binoculars (Fig. 1) so that you see a circular image (Fig. 2). Note this setting for later use.

Adjusting the focus P R C

Look through your binoculars with your right eye closed.

Now adjust the image for your left eye using the centre

wheel (1) until it is sharp and clear (Fig. 3). Close your left eye and adjust the image for your right eye using the dioptre ring (5) until it too is sharp and clear.

Using the Zoom Function P C

You can use the zoom lever (6) to select various levels of magnification; in general, the zoom is continuous. Simply move the lever back or forth to zoom.

Please note: When changing the magnification setting, it is necessary to re-adjust the image sharpness using the centre focussing wheel (1).

Porro/Roof:

Mounting the binoculars on a tripod PR

If your binoculars have a threaded tripod connection (Fig. 6) built in: The required tripod adapter is available in stores as an optional accessory (Art. No. 19-16000 or 19-16500). With this accessory, you are able to mount your binoculars on a tripod with a DIN mounting thread (e.g. Art. No. 49-22500).

• Clean the eyepieces and lenses only with a soft, lint-free cloth like a microfibre cloth. To avoid scratching the lenses, use only gentle pressure with the cleaning cloth.
• To remove more stubborn dirt, moisten the cleaning cloth with an eyeglass-cleaning solution and wipe the lenses gently.

- Protect the device from dust and moisture. After use, particularly in high humidity, let the device acclimatize for a short period of time, so that the residual moisture can dissipate before storing.

DISPOSAL

- Dispose of the packaging materials properly, according to their type, such as paper or cardboard. Contact your local waste-disposal service or environmental authority for information on the proper disposal.

DE GARANTIE & SERVICE:

The regular guarantee period is 2 years and begins on the day of purchase. To benefit from an extended voluntary guarantee period as stated on the gift box, registration on our website is required. You can consult the full guarantee terms as well as information on extending the guarantee period and details of our services at www.bresser.de/warranty_terms.

FR GARANTIE ET SERVICE:

Unit 1 Starborough Farm

Starborough Road, Nr Marsh Green

Edenbridge, Kent TN8 5RB

* Number charged at local rates in the UK (the amount you will be charged per phone call will depend on the tariff of your phone provider); calls from abroad will involve higher costs.

E-Mail: [e-mail]

Telefoon*: [phone]

Folux B.V.

Smirnoffstraat 8

7903 AX Hoogeveen

Netherlands