Tejraj Logo       Astro Photographers Club
  Manufacturers & Suppliers of Astronomical Telescopes in India
Serving Amateur Astronomers Since 1976
     

 
 
STARTRACKER
[ India ]
EXPLORE SCIENTIFIC
[ U.S.A. ]
G.S.O.
[ Taiwan ]
i-Optron GoTo
[ U.S.A. ]
BRESSER
[ Germany ]
ORION
[ U.S.A. ]
William Optics
[ Taiwan ]
BINOCULARS
SPOTTING SCOPES
EQUATORIAL MOUNTS EYEPIECES &
ACCESSORIES
CAMERA ADAPTORS OPTICS / KITS FILTERS
 
GSO Imaging Newtonian Telescopes
YOU ARE HERE >> HOME | Telescopes with Motor & GoTo| GSO 6" F/4 on EXOS-II Dual Axis Motor

GSO 6inch F/4 Imaging Newtonian Telescope with EXOS-II Dual Axis Motor & HPC
D=150mm / F=600mm F/4 Astrophotography Telescope | MADE IN TAIWAN (OTA)
75000 + 18% GST
[ click to enlarge ]
[ click to enlarge ]
[ click to enlarge ]
[ click to enlarge ]
[ click to enlarge ]
[ click to enlarge ]
[ click to enlarge ]
[ click to enlarge ]

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

Whats App Message
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 Dual Motor EQ Mount
Mount and Tripod. The BRESSER EXOS 2 is a rugged mount with high rigidity and precision tracking for visual observation and astrophotography. The tripod is extremely rigid to suppress vibrations really well. This model is very well machined and has a polar finder scope and precise graduated circles. A powered twoaxis control (BRESSER Exos Duo) or a GoTo-Kit is available as an optional extra. The BRESSER EXOS 2 can take the weight - depending on length and use of up to 13 kg. This allows you to use refractors of up to 152 mm aperture and mirror telescopes of up to 203 mm aperture.
  • The BRESSER EXOS 2 is a rugged equatorial mount with high rigidity and precision tracking for visual observation and astrophotography
  • The tripod is extremely rigid to suppress vibrations really well. This model is very well machined and has polar finder scope and precise graduated circles.
  • A powered two axis control (BRESSER Exos Duo) or a GoTo-Kit is available as an optional extra.
  • The BRESSER EXOS 2 can take the weight - depending on length and use of the telescope of up to 13 kg
  • Included: Mount, height adjustable tripod, 2x flexible shaft, polar finder scope, 4.5 Kilogram counterweight
 
BRESSER EXOS-II Mount Special Features
  • weight EXOS II Goto: 4.5kg (without counterweight shaft, which weights 1.0kg)
  • load capacity: 13kg
  • weight Tripod: 4.9kg
  • maximum height tripod: 108cm
 
BRESSER RA/DEC-Motor Kit Duo for EXOS-2 and EQ/MON-2
This Bresser Messier RA+DEC-Motor + Controller MON2 lets you control your Messier telescope more comfortably. Including controller. Suitable for Bresser Messier telescopes or mount with Exos-2 or Mon-2 equatorial mount.

Motorkit for both axes (RA und DEC). Handcontrol with 3 preset speeds (1x (sidereal speed); 8x; 32x). Suitable for entry level astrophotography.
 
What's in the Box
  • 150mm f/4 Newtonian Optical Tube Assembly (OTA)
  • 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 OTA
  • EXOS II Mount
  • Height Adjustable Tripod
  • 2x flexible shaft
  • Polar Finder Scope
  • 4.5 kg Counterweight
  • Stepping motor for RA- and DEC axis
  • Mounting material and clutches
  • Handcontrol
 
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
Colour white
Material Metal
Product series Messier
EXOS-II DIMENSIONS & WEIGHTS
Net weight
(without access.)
4500 g
Net Weight total
(incl. accessories)
14500 g
Net weight tripod
(incl. accessories)
4.9 kg
Shipping Weight 20 kg approx
DIMENSIONS & WEIGHTS of RA Motor
Total length 65 mm
Total width 55 mm
Total height 54 mm
Net Weight total (incl. accessories) 1440 g
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
 
WARNING
Buy BAADER Solar Safety Film
Buy 1000 OAKS Solarite Safety Film
 
The following items are FREE with the telescope listed above. [ Subject To Availability ]
Magnitude 5 STAR Atlas
Directional Compass  FREE - NOT IN STOCK
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. 930
  • T-RING Canon . . . . Rs 930
  • 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
 
 
 
TEJRAJ & CO. ASTRONOMICAL TELESCOPES BINOCULARS OTHER ACCESSORIES
Our Awards
 
 
 
 

Copyright © 2008 - Tejraj & Co. All Rights Reserved.