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GSO Imaging Newtonian Telescopes
YOU ARE HERE >> HOME | Telescopes with Motor & GoTo| GSO 6" F/4 on EXOS-II GoTo

GSO 6inch F/4 Imaging Newtonian Telescope with EXOS-II GoTo System
D=150mm / F=600mm F/4 Astrophotography Telescope | MADE IN TAIWAN (OTA)
90300 + 18% GST
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M31 Galaxy M51 Whirlpool Galaxy
Iris Nebula Moon Craters in Colour
Shot in Palakkad - KERELA
880 Pictures used to make a 25 sec timelapse
Telescope - 6inch GSO F/4
Camera - Sony A7iii
GSO 6inch F/4 Imaging Newtonian
  • 6" f/4 Imaging Newtonian telescope - for astro photography and rich field observation
  • fast and diffraction limited reflector system (f/4)
  • bright image by forced 94% mirror coatings
  • good field illumination by 63mm secondary mirror
  • robust mechanical system, no tilting/bending even under heavy camera load
  • improved Monorail focuser with 1:10 dual speed transmission - more stability compared with Crayford designs 
  • ideal for travelling: tube length only 58 cm, weight only 5.3 kgs with rings/no finderscope.
 
BRESSER EXOS-II EQ GoTo Mount
BRESSER EXOS-2 GoTo Equatorial Mount. Mounttripod and hand box with computer. This German mount has tracking motors in both axes that follow celestial objects very precisely.

The handbox with GoTo works reliable and controls the mount in every situation. 
Precise ball bearings in both axes ensures minimal backlash at all nine possible tracking speeds.

The mount rests on a very tough and rigid steel tripod and can take optical tubes of up to 13 kg. GOTO Stargazing at the push of a button! 

The Startracker GoTo System enables beginners to start astronomical observations in just a few minutes, and guides you to objects that are hard to localize through a standard finder scope.

Just push the button and the GoTo System will find planets, nebulae or galaxies for you and position your telescope automatically and precise.

The GoTo System database includes thousands of astronomical objects.

The Messier mount with GoTo System allows you to observe without tedious searching, or image faint objects that are hard to find in a standard finder scope.

The BRESSER StarTracker GoTo systems uses servo motors for both axes and features an ST-4 compatible autoguiding input. Guiding aggressivity can be set on the mount itself. 

The menu navigation of the Startracker Handbox is also multilingual and offers the settings of German, English, French, Spanish and Italian.
  • Equatorial GoTo-Mount with stainless steel tripod
  • Maximum payload: up to 13 kg
  • For easy finding and guiding the deep sky objects
  • Ideal for astrophotography because of an ST-4 compatible autoguider port
  • Included: Mount with tripod, Startracker handbox controller, 1x4.5kg counterweight, manual
  • Startracker handbox DE/GB/FR/ES/IT
 
BRESSER EXOS-II GoToMount Special Features
  • weight EXOS II Goto: 5.0kg (without counterweight shaft, which weighs 1.0kg)
  • payload capacity: 13kg
  • weight Tripod: 4.9kg
 
What's in the Box
  • 150mm f/4 Newtonian optical tube assembly
  • 2" Crayford-style linear bearing focuser with 1.25" eyepiece adapter
  • 6x30mm straight-through finder with bracket and base
  • Tube rings
  • 8" Vixen-style dovetail rail
  • 2" extension tube with 35mm extension
  • Front dust cover
  • No instruction manual is included for the OTA
  • Equatorial Mount
  • Height Adjustable Tripod
  • Polar Finder Scope
  • 1x Counterweight 4.5kg
  • Startracker Handbox DE/GB/FR/ES/IT
  • Manual for EXOS-II GoTo Mount
 
The high-quality 2" Crayford focuser
The 2" Crayford focuser with 1:10 speed reduction is included. Accessories are evenly clamped with a brass compresssion ring. The 1.25" reducer is equipped with a brass ring, too. The focuser will not wobble even when used with heavy cameras. With the 1:10 speed reduction, precise focusing is possible. Point-shaped stars over the whole field are the result.
 
GSO 6" F/4 Telescope SPECIFICATION
Country of Manufacturing (OTA) TAIWAN
Optical Design Fast Newtonian
Primary Mirror 150 mm Primary Mirror 94% reflectivity dielectrically coated/minimum 1/12th wave, BaK7 glass
Focal length 600mm
Focal Ratio f/4
Highest Practical power 200x
Faintest Steller Magnitude 13.6
Finder 6x30mm Fully multi-coated achromatic finder
Focuser: 2" Monorail with 1.25" reducer, brass compression rings and 1:10 dual speed transmission
Accepts Eyepiece Barrel Ø 50.8mm (2") to 31.7mm(1.25")
Secondary Mirror 63mm (minor Axis)
Standard Eyepiece(s) Your choice of any two GSO Premium Plossl Eyepiece 1.25''
any one from series:: 12mm / 9mm / 6mm / 4mm
any one from series:: 15mm / 20mm / 25mm / 32mm
[ subject to availability in choices ]
Barlow Lens OPTIONAL
Mount type German Equatorial
Astro-imaging capability Deep Sky
Mounting Ring Two mounting ring
Dove tail Bar system Yes
Tube material Steel
Tube dimension length 580 mm / diameter 180 mm
Weight , optical tube 6 kg including mounting ring and 6x30 finder
Shipping Weight OTA
Net weight - 6 Kg / Gross weight: 6.5 Kg
Shipping Cartoon Dimension 150/F4 OTA 65 x 40 x 26 cm3
EXOS-II GENERAL TECHNICAL DATA
Mount Type German/Equatorial Mount with GoTo
Polefinder scope included
Drive system in RA / AZ 12V DC servo motors with encoders
Fine movements Electric (RA and DEC)
Bearing in alt-azimuth / RA 2 ball bearings
Bearing in elevation / DEC 2 ball bearings
Material tripod3 Stainless Steel
Colour white
EXOS-II DIMENSIONS & WEIGHTS
Total length 100 mm
Total width 100 mm
Total height 160 mm
Maximum load capacity 13 kg
Net Weight total (incl. accessories) 15000 g
Net weight mount (incl. accessories) 5 kg
Net weight tripod (incl. accessories) 4.9 kg
Net weight pier (incl. accessories) 4.9 kg
Counterweight 4.5 kg
1]  Operation alternatively with a suitable power supply (included). Only use a power supply as indicated on the device / in the manual.

2] Operating voltage: 12V DC Connection power supply: DC- plug 5.5/2.5mm Polarity of the 12V connection socket: pin inside + / plug shaft unit.
 
Instructions for use in ENGLISH
Bresser Operating Manual for EXOS-2 GoTo
 
WARNING
Buy BAADER Solar Safety Film
Buy 1000 OAKS Solarite Safety Film
 
The following items are FREE with the telescope listed above.
Magnitude 5 STAR Atlas
Directional Compass  FREE
Collimination Tool (for Newtonian)
Micro Fiber (Anti-Static) Cleaning cloth
Optics Cleaning Fluid
COLOUR POSTER 17.5"  x 22.5 "  one
110 Messier Object Locator     A4 size front back colour print
109 Deep Sky CALDWELL Catalogue A4 size front back colour print
Star Dial - Identifying Stars & Constellations
Various Astronomical Post-Card (SET-3)
Desiccant Cap - Refillable desiccant cap to protect fine optics
Astronomical Telescope - user guide
The Moon Map Poster B/W chart unfold to 22"x26"
 
Suggested Accessories with this Telescope
    SOLAR FILTER
  • SOLARIX Solar filter (Explore Scienfific - USA) provide more pleasing and natural Yellow-Orange image of the Sun . . . . Rs 1560
    EYEPIECES (Super Premium Plossl for GSO) EYEPIECES (Super Premium Plossl for GSO)
  • 40mm Plossl Eyepiece 1.25" . . . . Rs. 2820
  • 32 mm Plossl Eyepiece 1.25" . . . . Rs 2640
  • 25 mm Plossl Eyepiece 1.25" . . . . Rs. 2550
  • 20 mm Plossl Eyepiece 1.25" . . . . Rs. 2460
  • 15 mm Plossl Eyepiece 1.25" . . . . Rs. 2280
  • 12 mm Plossl Eyepiece 1.25" . . . . Rs. 2100
  • 9 mm Plossl Eyepiece 1.25" . . . . Rs. 2100
  • 6 mm Plossl Eyepiece 1.25" . . . . Rs. 2100
  • 4 mm Plossl Eyepiece 1.25" . . . . Rs. 2100
  • GSO SuperView 15mm 1.25" Wide Angle Eyepiece . . . . Rs. 3000
  • GSO SuperView 20mm 1.15" Wide Angle Eyepiece . . . . Rs. 3000
  • GSO SuperView 30mm 2 " Wide Angle Eyepiece . . . . Rs. 4800
  • GSO SuperView 42mm 2" Wide Angle Eyepiece . . . . Rs. 4800
  • GSO SuperView 50mm 2" Wide Angle Eyepiece . . . . Rs. 4800
    FINDER
  • GSO 8x50 straight finder . . . . Rs 3900
  • GSO 8x50 RA finder . . . . Rs 4800
    BARLOW
  • GSO 2x ED-Barlow-Lens (Multicoated) . . . . Rs.4800
  • GSO 2X Achromatic BARLOW LENS- fully multicoated 1.25" . . . . Rs. 1470
  • ED 3X Barlow Lens GSO 1.25" . . . . Rs. 2640
  • 3 Elememt 2.5x Barlow GSO 1.25"  . . . . Rs. 2370
  • 3 Elememt 5x Barlow GSO . . . . Rs. 2820
    CAMERA ATTACHMENTS
  • T-RING Nikon . . . . Rs. 840
  • T-RING Canon . . . . Rs 840
  • T Adapter 1.25" . . . . Rs. 750
  • Super ACHROMATIC (MultiCoated /High Colour corrected) 2X BARLOW 1.25" OD, 2 ELEMENT LENS with T-thread for direct camera attachment /with Brass compression ring / GSO. . . . Rs. 3,000
  • 2 inch T-2 Camera Adapter . . . . Rs 1650
  • GSO 40mm Camera adapter 2 inch . . . . Rs. 1560
  • Eyepiece Projection Camera Adapter . . . . Rs. 2100
  • Mobile Cell Phone Adapter . . . . Rs. 1560
  • GSO 1.25" 32mm Camera Projection Lens (CPL) eyepiece ... Rs. 3900
  • GSO 1.25" 40mm Camera Projection Lens (CPL) eyepiece ... Rs.4080
  • GSO 2" 30mm Camera Projection Lens (CSV) eyepiece ... Rs.5700
  • GSO 2" 42mm Camera Projection Lens (CSV) eyepiece ... Rs.5700
  • COMA Corrector 2 inch . . . . Rs 5700
  • GSO....0.5X Focal Reducer 1.25" with 25mm extension tube ....Rs 1560
  • GSO.....0.5x Focal Reducer 2 inch ....Rs 2100
  • GSO Planet View filter each . . . . Rs 660
  • GSO 2 inch EXTENSION TUBE
    35mm . . . . Rs 1470
    50mm . . . . Rs 1560
    80mm . . . . Rs 1650
  • GSO....0.5X Focal Reducer 1.25" with 25mm extension tube ....Rs 1560
  • GSO.....0.5x Focal Reducer 2 inch ....Rs 2100
  • GSO Planet View filter each . . . . Rs 660
 
 
 
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