This telescope is checked by us before delivery and in any case pre-adjusted. The focuser is set.


How do we adjust: "About us"

 GSO 6 "F / 5 Newtonian telescope on Skywatcher N-EQ3 mount

GSO Newtonian telescope 150 / 750mm with 2 "Crayford extension on Skywatcher NEQ3-2 mount
... aperture 150mm / focal length 750mm / f5 - diffraction-limited parabolic optics from GSO
... stable equatorial mount EQ3-2 - expandable for astrophotography and GoTo



The GSO 150 / 750mm Newton is manufactured according to the specifications of Teleskop-Service. In addition to the high-contrast and sharp optics, solid mechanics are important for astrophotography. The result is a telescope that offers you high-contrast and crisp images of the moon and planets, shows the finest nebulae against a velvet-black background and is very suitable for astrophotography.

The advantages of the GSO 150 / 750mm Newton:

- enough back focus for astrophotography
- Very good illumination thanks to the large 50mm secondary mirror
- 2 "Crayford focus for precise focusing
- excellent parabolic mirror with diffraction-limited image - high sharpness up to approx. 250 times
- good blackening for better contrast
- 94% mirror coating for a brighter image
- Sturdy steel tube instead of soft aluminum tube for better stability

The Skywatcher equatorial mount EQ3



The equatorial mount EQ3 holds the Newton with reasonable stability - completely sufficient for visual observation. This telescope is our recommendation for all beginners who are looking for a very high-contrast and expandable telescope at a reasonable price.

- Transportable parallactic mount with manual fine adjustment in both axes
- The mount carries telescopes up to approx. 5kg
- Height adjustable aluminum tripod
- Fully expandable with polar finder, stepper motor control or GoTo control




The 2 "Crayford extract - ideal for large field observation and astrophotography

Simpler Newtonian telescopes have a 1.25 "focuser - sometimes not even made of metal. The 2" Crayford focuser is of course made of metal. The extension tube has ball bearings. Even heavy cameras and eyepieces can be carried without any problems and nevertheless sensitive focusing is possible.

The focuser comes with a reduction to 1.25 "and a 30mm 2" extension. With the extension you can reach the sharpness more easily.

Image quality of the GSO parabolic optics:



GSO is known worldwide for very good optics at solid prices. We guarantee diffraction limited imaging. Due to the smooth surface of the mirrors and the forced mirroring of 94%, you will be able to perceive and photograph the finest fog structures against a matt black background. Moon craters will appear almost three-dimensional to you and this telescope will also show you fine details of our planets.

The 6 "f / 5 Newton already offers a solid basis for astrophotography:



The Newton is already delivered ready for astrophotographic use. Expensive investments and conversions are not necessary.

- solid 2 "Crayford pull-out also suitable for heavy cameras
- Sufficient back focus for use with coma correctors and DSLR cameras
- Well-lit field thanks to a reasonably sized secondary mirror
- 94% forced mirroring for a brighter image and shorter exposure times

Technical specifications::

- Optics ... aperture 150mm / focal length 750mm / f5 ... parabolic primary mirror
- Central marking ... yes
- Secondary mirror ... 50mm small axis for better illumination / thin 1mm spiders for little shading
- focuser ... 2 "Crayford focus - ball bearing
- Finder ... 6x30 achromatic finder with quick release
- Tube ... steel tube for more rigidity - diameter 179mm / length 690mm
- Weight ... 5.9kg

Scope of delivery:

- Newtonian telescope with parabolic primary mirror and 2 "Crayford extension
- Pipe clamps with a flat contact surface on both sides including a prism rail for adaptation to the mount
- 6x30 finder with quick coupling
- Reduction from 2 "to 1.25" with ring clamping
- 2 "30mm extension sleeve for easier focus when observing
- Skywatcher equatorial mount EQ3 with aluminum tripod and manual fine adjustment
- 25mm 1.25 "Plössl eyepiece