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


How do we adjust: "About us"

 TS-PHOTON 8 "200mm f / 6 Advanced Planet Newtonian with quartz primary mirror

 

The PHOTON Newtonian reflector with 200mm aperture and f / 6 is optimized for visual observation and for photography of the moon and planets.

♦ 200 mm aperture / 1200 mm focal length / F6 aperture ratio

♦ High quality parabolic primary mirror made of quartz (comparable to Zerodur) without thermal expansion for immediate use

♦ 94% reflection for a brighter and higher-contrast image

♦ Secondary mirror diameter only 50 mm small axis - shading only 25% linear - nevertheless good illumination, also for 2 "eyepieces

♦ Illustration is comparable to a 6 "Apo without color errors with a very bright picture.

♦ Main mirror holder and secondary mirror holder made of metal - no plastic - fully adjustable (illustration of the secondary mirror holder - left)

♦ Precise 2 "Crayford focuser with 1:10 micro reduction for precise focusing - the focuser is already included in the price

♦ Stable steel tube instead of soft aluminum tube - ensures better adjustment stability

♦ Practical adjustment aid on the main mirror - central marking

♦ Focus position prepared for observation with all common eyepieces and Barlow lenses

♦ Pipe clamps and 8x50 viewfinder, as well as primary mirror ventilation are included



TS-Photon 8 "f / 6 planet Newton for visual observation and planetary photography
This telescope from the PHOTON series is the TOP choice for dedicated observers and photographers of the moon and planets. The Newton is designed for precisely these areas of application and delivers the best possible performance. Nebulae, star clusters and galaxies can also be observed well with this Newton. Enjoy the fine stars up to the edge of the field of vision.

Read the exciting test report - First use with photos of the 8 "f / 6 Photon - under Testimonials.

The uncompromisingly good image quality, which is comparable to a 150mm Apo, is achieved by the selected good quartz main mirror and by the small secondary mirror with only 50mm diameter.

The advantages of the PHOTON Newton at a glance:

♦ Best sharpness on the moon and planets
♦ With a weight of only 10kg, the telescope is still portable and can also be carried by smaller mounts
♦ Linear shading only 25%, nevertheless very good illumination, also for 2 "eyepieces
♦ Thanks to the relaxed aperture ratio of f / 6, you can achieve very good sharpness in the entire image field, even with inexpensive large field eyepieces
♦ Stable 2 "Crayford extension with 1:10 micro reduction for precise focusing and 1.25" reduction
♦ Steel tube and metal mirror holders for main and secondary mirrors ensure optimum adjustment stability
♦ Only with TS: carbon tube for retrofitting for easier transport

The mirror carrier made of quartz glass:

Every material has its specific expansion value. It is crucial how the mirror reacts to changes in temperature. The lower this expansion value, the less the mirror reacts to temperature fluctuations. It is ready for use faster and the image quality is higher right from the start.

The mirror carrier made of quartz glass has no discernible thermal expansion, so it is superior to known mirror carriers made of Pyrex or Suprax, similar to Zerodur. We recommend quartz mirrors because of their excellent surface area for building high-resolution Newtonian telescopes for the observation and photography of the moon and planets.

Astrophotography with the TS-PHOTON 8 "f / 6 Newton:

The telescope is optimized for visual observation and for photography of the moon and planets. The focus position of 40mm above the 2 "receptacle is optimal for both applications. With astro cameras, for example from ZWO, you can easily focus. A coma corrector is not necessary, up to a sensor size of about 20mm diameter. DSLR Cameras, on the other hand, need a converter that pulls the focal plane out further. With the 2 "Barlow + Photo Converter TSB22, you can do just that.




Telescope Type: Newton Telescope
Opening: 200 mm - 8 "
Focal length: 1200 mm
Aperture: f / 6
Main mirror: parabolic main mirror - mirror carrier made of quartz
Quality of the optics: significantly better than diffraction limited
Main and secondary mirror reflection: 94% forced reflection
Secondary mirror diameter: 50mm small axis - 25% linear shading
Illumination: 100% illumination - 19 mm
Weight: 10 kg with clamps and viewfinder
Tube dimensions: length 1100 mm - diameter 230 mm


♦ Photon 200mm f / 6 Newton OTA
♦ pipe clamps
♦ GP - EQ5 level prism rail
♦ 8x50 viewfinder
♦ 2 "Crayford with micro reduction
♦ Reduction from 2 "to 1.25" with filter thread
♦ Dust cover for front and pull-out
♦ 12V main mirror aerator
♦ Adjustment instructions