EXPLORE SCIENTIFIC BT-70SF BT Series Giant Binoculars Instruction Manual

: June 6, 2024
: EXPLORE SCIENTIFIC

Table of Contents

Set content
Parts overview
Assembly
Observation
Tips on observation
Optionally available accessories
Cleaning & Maintenance
Technical data
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

EXPLORE SCIENTIFIC BT-70SF BT Series Giant Binoculars - Series Giant
Binoculars

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

DANGER! Never look directly at or near the sun with this device without solar filter! Direct sunlight will cause serious damage of your eyes or even blindness within a few seconds.
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.

http://archive.bresser.de/download/7007500/| http://www.bresser.de/P0114300
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Set content

Giant binoculars

U-Mount with mounting plate and tripod head adapter

Tripod with spacing plate and central screw

2x 62° LER eyepiece 20mm Ar

Parts overview

Tripod

Tripod head
Tripod leg (upper part)
Fixing screws for tripod leg
Tripod leg (lower part)
Spindle crank
Knurled screw
Central screw
Spacing plate
Washer
C-Clip

U-Mount

11. Friction wheels for height adjustment EXPLORE SCIENTIFIC BT-70SF BT
Series Giant Binoculars - U-Mount
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
21. Tripod head adapter

Giant binoculars

EXPLORE SCIENTIFIC BT-70SF BT Series Giant Binoculars - Giant
binocularss

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
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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!

Assembly

Spread the tripod legs, extend and clamp them.
Assemble spacing plate and central screw.
Insert the central screw with the spacing plate in the tripod head and fix it.
Insert the tripod head adapter into the tripod head. Place the U-Mount on the tripod head adapter.
Screw the U-Mount with the tripod head adapter and the tripod. Tighten the tripod legs with the knurled screw.
Friction adjustment of the coupling for the height axis.
Friction adjustment of the coupling for the azimuth axis.
2 x ¼” connection thread on the bottom side of the binoculars
Mounting the adapter plate on the bottom side of the binoculars.
Insert the binoculars in the dovetail guide of the U-Mount.
Hold the binoculars by the carrying handle and tighten the fixing screws.
Balance the binoculars at the centre of gravity.

Observation

13. Align the binoculars to the object of observation. Possibly pull out the protection caps.
14. Remove the dust caps from the objective lenses.

15. Remove the dust caps from eyepiece holder.
16. Insert and clamp the eyepieces. 17. Focusing by means of helical single focusing.
18. Adjusting the eye relief.

Tips on observation

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.

Optionally available accessories

When using optional accessories, read separate instruction manual! Only use accessories authorized by the manufacturer!

EXPLORE SCIENTIFIC Eyepiece series

EXPLORE SCIENTIFIC Nebula filters

EXPLORE SCIENTIFIC TELRAD Projection viewfinder with base

EXPLORE SCIENTIFIC Filter Set 2

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.

Technical data

Giant binoculars

Product (Art. No.)| Objective lens type| 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-Mount with tripod

(0114300)

| Fork arm mount on steel tripod| 12.0| 1000x1000x1400| 11.3

Bresser GmbH
Gutenbergstr. 2 · DE-46414 Rhede
Germany
www.bresser.de · service@bresser.de

Errors and technical changes excepted.
Manual_0114200-0114210-0114220-0114230-0114300_BT- Series-U-Mount_en_EXPSC_062021a