More about the series Photon...
In brief:
- Newton telescope made of carbon
- Universal for observation and photography
- Quartz parabolic mirror
- Blackened interior to prevent reflection
- High-quality focuser
The N 200/1000 telescope - The 200mm aperture allows the observer to see a wealth of detail when deep sky observing. With 78% more light available than a 150mm telescope even the delicate spiral arms of many galaxies and structures in nebulae may be observed. Even globular clusters, such as the famous M13 cluster in Hercules, can be clearly resolved right out to the edge.
The main parabolic mirror is diffraction-limited, providing a sharp image. The very high-contrast image provided by the optics is optimized by use of a small secondary mirror and thin secondary mirror vanes. This also means that equally sharp and bright planetary observing is possible at higher magnifications.
The robust focuser allows the use of two inch eyepieces, and an adapter is included to allow 1.25" eyepieces to be used. Two of these eyepieces are included with the telescope, allowing you to get started observing right away.
The telescope has an aperture ratio of f/5, making this telescope a member of the of the 'fast Newtonian' class instruments. These optics make the telescope particularly good for astrophotography. The eight millimetre finder shows you objects that are invisible to the naked eye alone, and helps you to navigate in the night sky.
The advantages in a nutshell
- high light gathering power thanks to the 200mm aperture
- parabolic main mirror
- well suitable for astrophotography due to its fast optics
The high-quality parabolic primary mirror made of quartz has very low thermal expansion. This means that the telescope is quickly ready for use and stable in alignment.
Carbon lens tube: The classic black carbon lens tube saves weight. This not only makes transportation easier but also takes load off the mount. At the same time, the thermal expansion coefficient of carbon fibre is considerably smaller than that of aluminium or steel. This makes the telescope's focus much more stable when is comes to changes in temperature.
Scope of delivery:
- TS UNC Carbon Newton telescope with 2" UNCN2-G2 focuser
- Aluminium tube clamps with two flat contact surfaces per clamp
- Dust caps for the telescope opening and focuser
- Vixen level finder shoe
- 8x50 finder with finder holder
- Reduction from 2" to 1.25" with 2" filter thread
- Fan for cooling down the primary mirror
- Instructions for assembling and collimating the telescope
TS Optics is a brand of Teleskop-Service.
It not only matters which telescope you buy but also where you buy it. Our additional services:
- We are a leading telescope dealer and know the devices we sell. Our customer service team will gladly help you after your purchase if you have problems with assembly or operation.
- We provide a copy of the 80-page Telescope ABC beginners handbook with every telescope.
Our expert comment:
GSO supplies a short Vixen dovetail (approx. 100 mm long) with this telescope.
However, this dovetail is too short to ensure that the optical tube is securely attached to a mount.
It is better to opt for a dovetail plate approximately 330 mm long to provide a wider base between the clamps.
These simple models require drilling, as the centre-to-centre distance of the GSO mounting screws differs from the holes in these accessories:
http://www.astroshop.de/fr/plateaux-rails-de-support/skywatcher-plaque-d-assemblage-pour-eq-4-5-6-installations-longue/p,3887
http://www.astroshop.de/fr/plateaux-rails-de-support/orion-queue-d-aronde-330-mm/p,14487
Geoptik offers a dovetail with oblong holes for greater flexibility and a built-in spirit level:
http://www.astroshop.de/fr/plateaux-rails-de-support/geoptik-prismenschiene-vixen-style-340mm/p,49117
But these are not the only models available.
(Sandra Eguay)
