Explore Scientific BT Series User manual

BT Series
Giant Binoculars
BT-70SF - BT-82SF - BT-100SF - BT-120SF
Art. No. 0114200 / 0114210 / 0114220 / 0114230
U-Mount with tripod
Art. No. 0114300
INSTRUCTION MANUAL

2
DANGER! Never look directly at or near the sun with this device
without solar lter! Direct sunlight will cause serious damage of your eyes
or even blindness within a few seconds.
GEFAHR! Blicken Sie niemals mit diesem Geräte ohne Sonnenlter
direkt in oder in die Nähe der Sonne! Direkte Sonneneinstrahlung führt
bereits nach wenigen Sekunden zu schweren Augenschäden oder sogar zu
einer Erblindung.
DANGER! Ne regardez jamais directement ou près du soleil avec cet
appareil sans ltre solaire! La lumière directe du soleil causera de graves
dommages aux yeux ou même la cécité en quelques secondes.
¡PELIGRO! Nunca mire directamente o cerca del sol con este
dispositivo sin ltro solar! La luz solar directa causará daños graves en los
ojos o incluso ceguera en unos pocos segundos.
PERICOLO! Non guardare mai direttamente o vicino al sole con
questo dispositivo senza ltro solare! La luce solare diretta causerà gravi
danni agli occhi o addirittura la cecità in pochi secondi.
GEVAAR! Kijk nooit direct of in de buurt van de zon met dit apparaat
zonder zonnelter! Direct zonlicht zal binnen enkele seconden ernstige
schade aan uw ogen of zelfs blindheid veroorzaken.
DE
Besuchen Sie unsere Website über den folgenden QR Code oder Weblink um weitere Informationen
zu diesem Produkt oder die verfügbaren Übersetzungen dieser Anleitung zu nden.
GB
Visit our website via the following QR Code or web link to nd further information on this product
or the available translations of these instructions.
FR
Vous souhaitez un mode d’emploi détaillé pour ce produit dans une langue spécique ? Alors consultez
notre site Internet à l’aide du lien suivant (code QR) pour voir les versions disponibles.
ES
¿Desearía recibir unas instrucciones de uso completas sobre este producto en un idioma determinado?
Entonces visite nuestra página web utilizando el siguiente enlace (código QR) para ver las versiones
disponibles.
NL
Bezoek onze internetpagina via de volgende QR-code of weblink, voor meer informatie over dit
product of de beschikbare vertalingen van deze gebruiksaanwijzing.
IT
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il nostro sito Web al seguente link (codice QR Code) per conoscere le versioni disponibili.
www.bresser.de/P0114200

3
Set content
Giant binoculars
2x 62° LER eyepiece
20mm Ar
Tripod
with spacing plate
and central screw
U-Mount
with mounting plate

4
Parts overview
Tripod
U-Mount
11. Friction wheels f. height adjustment
12. Movable height cradle
13. Fork arm
14. Adapter plate for 15.
15. 1/4" threaded screws
16. Dovetail rail
17. Fixing screws for 16.
18. Turnable azimuthal axis
19. Fixing screw for 18.
20. Mounting head
1. Tripod head
2. Tripod leg (upper part)
3. Fixing screws for tripod leg
4. Tripod leg (lower part)
5. Spindle crank
6. Knurled screw
7. Central screw
8. Spacing plate
9. Washer
10. C-Clip






  












5
Parts overview
21. Objective Lens
22. Dew/sun protection cap, extendable
23. Tube
24. ¼" Connection thread
25. ⅜"-Connection thread* with unscrewable
¼“ Connection thread adapter
26. Transport handle
27. Eyepiece, exchangeable
28. Eyepiece holder
29. Eyepiece clamping ring
30. Focusing
31. Interpupillary distance adjustment
Giant binoculars
* for mounting on photo tripods with corresponding mounting head. ¼" connection thread can be unscrewed using a
slotted screwdriver, thus exposing a "⅜"connection thread.
When mounting the binoculars on a photo tripod with appropriate
mounting head, make sure that the photo tripod and the mounting
head have sufficient load-bearing capacity!





    


6
Assembly
3. Insert the central screw with the spacing
plate in the tripod head and fix it.
5. Screw the U-Mount to the tripod head. Tighten
the tripod legs with the knurled screw.
2. Assemble spacing plate and central
screw.
6. Friction adjustment of the coupling for
the height axis.
1. Spread the tripod legs, extend and clamp
them.
4. Insert the U-Mount into tripod head.

7
Assembly
7. Friction adjustment of the coupling
for the azimuth axis.
9. Mounting the adapter plate on the
bottom side of the binoculars.
11. Hold the binoculars by the carrying
handle and tighten the fixing screws.
10. Insert the binoculars in the dovetail
guide of the U-Mount.
12. Balance the binoculars at the centre
of gravity.
8. 2 x ¼" connection thread on the
bottom side of the binoculars

8
Observation
13. Align the binoculars to the object of
observation. Possibly pull out the
protection caps.
15. Remove the dust caps from
eyepiece holder.
17. Focusing by means of helical single
focusing.
16. Insert and clamp the eyepieces.
18. Adjusting the eye relief.
14. Remove the dust caps from the
objective lenses.

9
Observation
Astronomical observations
44
88
Land observations
44
88
Tips on observation
Moon* Star cluster M45 Pleiades* Orion nebula M42*
Landscape* Birds* Ships*
* Sample images for illustration purposes. The actual image size and image quality depends on the selected eyepieces.
Astronomical motifs are usually not visible in colour due to the long observation distance.

10
EXPLORE SCIENTIFIC Eyepiece series
EXPLORE SCIENTIFIC TELRAD
Projection viewfinder with base
EXPLORE SCIENTIFIC Nebula filters
EXPLORE SCIENTIFIC Filter Set 2
Optionally available accessories
When using optional accessories, read separate instruction manual!
Only use accessories authorized by the manufacturer!

11
Technical data
Giant binoculars
Product
(Art. No.)
Objective lens
ltype
Aperture
(mm)
Focal length
(mm)
Dimensions
(LxWxH)
(mm)
Weight
(kg)
BT-70SF
(0114200)
achromatic (2
elem./1 gr.)
70 400 370x213x122 3.4
BT-82SF
(0114210)
achromatic (2
elem./1 gr.)
82 470 445x226x122 4.3
BT-100SF
(0114220)
achromatic (2
elem./1 gr.)
100 550 520x270x155 6.8
BT-120SF
(0114230)
achromatic (2
elem./1 gr.)
120 660 654x290x156 8.3
U-Mount and tripod
Product
(Art. No.)
Type Loading
capacity
(kg)
Dimensions (LxWxH)
(extended, mm)
Weight
(kg)
U-Mont
with tripod
(0114300)
Fork arm mount
on steel tripod
12.0 1000x1000x1400 11.3
Cleaning & Maintenance
Giant binoculars
• Clean the lenses (eyepieces and/or objective lenses) only with a soft and lint-free cloth
(e.g. 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 acclimatise at room temperature for a short period of time, so that the residual
moisture can dissipate. Put the dust caps on and store it in a dry and heated place.
U-Mount and tripod
• Clean the device only on the outside with a dry cloth.

Bresser GmbH
Gutenbergstr. 2 · DE-46414 Rhede
Germany
www.bresser.de · [email protected]
Errors and technical changes excepted.
Manual_0114200-0114210-0114220-0114230-0114300_BT-Series-Binoculars_en_EXPSC_122020b