Explore Scientific G400 User manual
G400 Binoculars
Giant Binoculars
8x42 - 10x42 - 10x50 - 15x56
Art. No. 08-10843 / 08-11043 / 08-11051 / 08-81556
Instruction Manual
01
Parts
01. Ocular Lens
02. Center Focus
03. Rubber Eyecup
04. Diopter
05. Strap Attachment
06. Objective Lens
07. Tripod Adapter Socket
05
06
07
02
04
03
01
Diagram may vary.
PARTS OVERVIEW
02
General Safety Informations!
RISK of physical injury!
Never look through this device directly at or near the sun. There
is a risk of BLINDING YOURSELF!
Children should only use this device under supervision. Keep
packaging materials (plastic bags, rubber bands, etc.) away
from children. There is a risk of SUFFOCATION.
Fire/Burning RISK!
Never subject the device - especially the lenses - to direct sunlight. Light ray concen-
tration can cause res and/or burns.
RISK of material damage!
Never take the device apart. Please consult your dealer if there are any defects. The
dealer will contact our service centre and send the device in for repair if needed.
Do not subject the device to temperatures exceeding 60° C!
TIPS on cleaning
Lenses (eyepieces and/or object lenses) should be cleaned with a soft, lint-free cloth
(e.g. microbre) only. Do not use excessive pressure - this may scratch the lens.
Dampen the cleaning cloth with a spectacle cleaning uid and use it on very dirty
lenses. Protect the device against dirt and dust. Leave it to dry properly after use at
room temperature. Then put the dust caps on and store the device in the case pro-
vided.
Warranty & Service
The regular guarantee period is 2 years and begins on the day of purchase. To benet
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 infor-
mation on extending the guarantee period and details of our
services at www.bresser.de/warranty_terms.
www.bresser.de/warranty_terms
03
Your Explore Scientific binocular is fitted with eyecups which can be rolled or
twisted up or down (depending on your model) to optimize the view for your
eyes and to exclude extraneous light. If you are not wearing eyeglasses or
sunglasses, keep the eyecups fully extended (“up” position). If you are wearing
glasses, roll down the eyecups or twist them to the down position. This will
bring your eyes closer to the binocular’s eyepiece (ocular) lens to ensure you
can see the entire image (full field of view with no “cuto” or “tunnel vision”).
IPD (Interpupillary Distance) Adjustment
The distance or spacing between the center of the pupils, called “interpupillary
distance” (IPD) varies from person to person. To adjust the binocular to match
your eyes, follow these simple steps:
1. Hold your binocular in the normal viewing position. Grasp each barrel firmly.
2. Move the barrels closer together or further apart until you see a single
circular field (don’t worry about focus yet).
3. Always re-set your binocular to this position before using it.
Twisted Eyecup
Rolled Eyecup
Twisted Eyecup
Rolled Eyecup
Twisted Eyecup Rolled Eyecup
Drawing may not match binocular model.
Eyecup Adjustment
04
Diopter Adjustment and Focusing
1. Adjust eyecups interpupillary distance as described in the previous sections.
2. Set the diopter adjustment ring to zero and view a distant object.
3. Keep both eyes open at all times.
4. Using a lens cover or your hand, cover the objective (front) lens of the same
side of the binocular that has the diopter adjustment ring. This is usually the
right side.
5. Using the center focus wheel, focus on a distant object with fine detail (e.g.,
brick wall, tree branches, etc.) until it appears as sharp as possible.
6. Uncover the objective lens on the diopter side, cover the other objective lens,
the left side, then view the same object.
7. Using the diopter adjustment ring, move the dipoter adjustment marker to
the “+” or “-” till you reach focus.
Caution should be used as over turning or forcing the diopter ring can cause
damage or cause the eyepiece to break away from the chassis.
8. Your binocular should now be adjusted for your eyesight. Focusing for any
distance can now be done simply by turning the center focus wheel. Make a
note of your diopter setting for future reference.
Neckstrap Attachment
To securely attach your binocular to the binocular strap:
1. Thread the end of the strap from the bottom up through the strap
attachment loop.
2. Hold the buckle and thread the end of the strap inside the buckle.
3. Adjust the overall length and pull the strap webbing tight so it is secure
within the buckle.
#615/617/616/618
Diopter
Adjustment
Ring
Diopter
Adjustment Marker
05
Waterproof / Fogproof Models
Explore Scientific binoculars are designed and built utilizing the latest
waterproof and fogproof technology (this will be noted on the product
packaging). Waterproof models are O-ring sealed for complete moisture
protection. Fogproof protection is achieved from dry nitrogen purging that
removes all internal moisture.
Tripod Mounting (tripod and tripod adapter not included)
To attach the binocular to a tripod or mono-pod, unscrew (counter-clockwise)
the cap which covers the threaded socket at the far end of the center hinge,
and set it aside in a safe place. Use a compatible binocular tripod adapter
accessory to attach your binocular to any standard tripod in a horizontal
position to provide a stable image during prolonged viewing.
Care and Cleaning
Your Explore Scientific binocular will provide years of trouble-free service if it
receives the normal care you would give any fine optical instrument.
• Do not expose non-waterproof models to heavy rain or other excessive
moisture.
• If your binocular has roll-down, flexible eyecups, store it with the eyecups up.
This avoids excessive stress and wear on the eyecups in the down position.
• Avoid sharp impacts. Use the included neckstrap to avoid accidentally
dropping the binoculars to prevent mis-alignment of the optics.
• When not using them, store your binoculars in the provided case in a cool,
dry place.
• Avoid storing the binoculars in hot places, such as the passenger
compartment of a vehicle on a hot day. The high temperature could adversely
aect the lubricants and sealants. Never leave the binocular where direct
sunlight can enter either the objective or the eyepiece lens. Damage may
result from the concentration (burning glass eect) of the sun’s rays.
• All moving parts of the binocular are permanently lubricated. Do not try to
lubricate them.
To Clean Your Binoculars Lenses
1. Blow away any dust or debris on the lens (or use a soft lens brush).
2. To remove fingerprints or other smears, clean with a soft cotton cloth rubbing
in a circular motion. A “microfiber”cleaning cloth (available from camera or
computer retailers) is ideal for the routine cleaning of your optics.
3. For a more thorough cleaning, photographic lens tissue and photographic-
type lens cleaning fluid or isopropyl alcohol may be used. Always apply the
fluid to the cleaning cloth – never directly on the lens.
For assistance or to return an item, contact Explore Scientific at 866.252.3811
or visit explorescientific.supportsync.com for return procedures.
06
DISPOSAL
Dispose of the packaging materials by type. Contact your local waste-disposal
service or environmental authority for information on the proper disposal.
EC DECLARATION OF CONFORMITY
A “Declaration of conformity” in accordance with the applicable directives
and corresponding standards has been prepared by Bresser GmbH. This can
be viewed at any time upon request at
www.bresser.de/download/0810843/CE/0810843_CE.pdf
www.bresser.de/download/0811043/CE/0811043_CE.pdf
www.bresser.de/download/0811051/CE/0811051_CE.pdf
www.bresser.de/download/0881556/CE/0881556_CE.pdf
UKCA DECLARATION OF CONFORMITY
A “Declaration of conformity” in accordance with the applicable directives and
corresponding standards has been prepared by Bresser GmbH. This can be
viewed at any time upon request at
www.bresser.de/download/0810843UKCA/0810843_UKCA.pdf
www.bresser.de/download/0811043UKCA/0811043_UKCA.pdf
www.bresser.de/download/0811051UKCA/0811051_UKCA.pdf
www.bresser.de/download/0881556UKCA/0881556_UKCA.pdf
BRESSER UK Ltd. • Suite 3G, Eden House
Enterprise Way, Edenbridge, Kent TN8 6HF, GB
Bresser GmbH
Gutenbergstr. 2 ·DE-46414 Rhede
Germany
All rights reserved. Made in China.
Errors and technical changes excepted.
Manual_0810843-0811051-0881556_G400-Binoculars_en_EXPSC_052022a
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