The Skywatcher Quattro 8CF Photo Newton is checked and adjusted by us before delivery. The focuser is set.

All Newtonian telescopes should be adjusted before first use and then periodically for a clear image. We adjust all of our Newton before they leave our house.

How we adjust: About us

These telescopes are shipped free of charge in Germany.


 

Telescope Skywatcher Explorer 200PDS 200mm 1000mm f / 5 on N-EQ5 Mount

Skywatcher QUATTRO 8CF Photo-Newton 200mm f / 4 Carbon Tubus
SkywatcherQuattro-8CF - parabolic photo-optimized Newton - improved linear power excerpt


Skywatcher QUATTRO 8CF Fotonewton 200 / 800mm Carbon

A telescope with 200mm opening Stable 2 '' extension for heavier loading at 800mm focal length, optimized for astrophotography.

Basics:

There are not only alternators in the car! :-)
Newton telescopes are considered (and are) basically high-powered telescopes. From f / 5 I define again as particularly bright. When observing the moon, we definitely recommend a filter to reduce the glare effect. - The moon reflects so much light that the light should be attenuated (especially at low magnification). Also note the dark adaptation of the eye. For example, if I want to observe deep sky objects after the moon, the adaptation of the eye takes a certain amount of time before I can perceive the much fainter ones again in detail.
And that brings us to the objects that such a Newton can show in abundance - visually and photographically!
Deep sky objects (ie galaxies, nebulae, star clusters ...) do not require a high magnification, but a corresponding light gathering power. For photography, this also means the shortest possible exposure time for a shot.
Planets (and moon) require a higher magnification and thus a Barlow lens ???? for focal length extension.
So with this device also beautiful details on the moon and planets can be seen! So you do not have to do without this field of application:
An (almost) all-rounder among the telescopes focusing on deep sky.

The aperture ratio allows short exposure times for deep sky objects. The so-called "seeing" - so the visibility conditions - beat at 8 inches not so dramatic to book. In our visibility conditions so acceptable and good photos and also observation results are possible or given.

For school astronomy, this device is recommended by an Astrophoto AG.

A further advantage of this telescope is the 2 "linear power pullout. This pullout separates the bearing from the adjustment, compared to the Crayford pullout, which means that heavy load can be withstood by four precision ball bearings The weight of a full-format SLR camera is no problem!

The focus position of the QUATTRO Newton telescope is dimensioned so that even with DSLR cameras can be easily focused.

The 2 "Linear Power Extract:

skywatcher dual speed linear power focuser


The fixing of the pull-out position is done via a handy thumbscrew exactly in the middle of the axis. So the ball bearings are evenly loaded and there is no tilting.

Of course, the extract has a 1:10 micro reduction. Only then is at f / 4 an exact focus possible.

2 "eyepieces give a beautiful impression of the celestial objects - especially with a large field of vision, nebulae and galaxies appear in a wide environment, which is particularly appealing because the objects in the room" float. "If you have less field of view, you can also see the details of the celestial objects However, the three-dimensional effect is less pronounced than the larger field of view, and in the case of planets this is also relevant to Jupiter because the constellation of Jupiter's moons is more beautiful in relation to the planet to a change of the constellation after some observation time.
Details on Jupiter itself (cloud bands, large red spot) are in a 1 1/4 "eyepiece but then again equivalent in the impression - or recommended for short-focal eyepieces also here the spatial environment is no longer relevant.


The carbon tube:

The beneficial carbon tube is slightly lighter and more stable than a conventional metal tube. The better thermal stability ensures a stable focus even with temperature changes. For steel tubes, if necessary, the focus point changes due to cooling during a longer exposure. With a carburetor, a shot can be exposed for a longer time without losing its sharpness. It does not have to be refocused that fast. So perfect for astrophotography!

Technical specifications:

- Diameter primary mirror: 205mm
- Focal length: 800mm
- opening ratio: f / 4
- 2 "linear power focuser with reduction from 2" to 1.25 "
- Ultra-thin capture mirror mount to maximize contrast and minimize diffraction
- Carbon tube

Delivery:

- Quattro 8CF Imaging Newton
- PYREX primary mirror - diffraction-limited - for rapid cooling
- Clamps
- prism rail (GP level)
- 9x50 viewfinder with quick coupling