SkyWatcher Quattro-8S - 200/800 imaging Newtonian

A large aperture and fast, F/4 newtonian telescope. Ideal for astrophotography and visual observations as well.

Product variants

More about the product

Imaging faint objects require long exposure times. The exposure times can be reduced by using faster telescopes.
The Sky-Watcher Quattro 8S is a premium quality imaging Newtonian with a wide field of illumination and fast f4 focal-ratios. The tube is equipped with knife-edge ray traced baffles for maximum image contrast. It has paraboloidal primary mirror made of low thermal expansion glass resulting in shorter cool-down times. A 2" dual speed Crayford focuser helps for precise focus adjustment.

The tube length of the telescope is also shorter, meaning that the scope is easier to handle and transport, and it is also more stable on a given mount than a longer tube model.

A comacorrector is a recommended accessory for astrophotography, we recommend the SkyWatcher's aplanatic F/4 coma corrector, which has really good quality.

This scope is an excellent instrument for visual observing too, especially for deep-sky oobjects,  but can be used with high magnifications as well.

Note that the mount is not included.

For visual use the minimum recommented mount is an EQ5 or AZ-EQ5, while for astrophotography the minimum mount is an AZ-EQ5 or HEQ5 Pro mount

Product code SWN2008i
optikai felépítés Newton (tükrös)
objektív átmérő 200 mm
fókusz 800 mm
nyílásviszony F/4
segédtükör mérete 70 mm
nagyítástartomány 30-300x
felbontóképesség 0,6 " (ívmásodperc)
kereső 9x50 SpringLoad
fókuszírozó 2'' kétsebességes Crayford (1:10)
tartozék okulár és kapott nagyítás
egyéb tartozék 1,25" és 2" vizuális toldat, T2 adapter
mechanika opcionális
teljes tömeg kg
tubus tömege 9 kg
méret

lac's opinion

After a few weeks, months of usage

Optical quality

Mechanical quality

Price/Value ratio

200/800 SkyWatcher Newtonian reflector reflector with Dual-Speed focuser with 9x50 finder
200/800 SkyWatcher Newtonian reflector reflector with Dual-Speed focuser with 9x50 finder
Pros

A nagyobb kiterjedésű mély-ég objektumok is jól beleférnek a látómezőbe. Nekem tetszik a képalkotása. Még épp hordozható méretű kitelepüléshez. Nagyon fényerős, elfogadható ideig kell fényképezni a mély-ég objektumokat is.

Cons

1. Hanyag összeépítés. A főtükör lötyögött a tartóban, két karom nem volt eléggé meghúzva. Pont annyira, hogy nehéz legyen észrevenni, de a cső átfordításkor elmozduljon egy kicsit. 2. A karmok belógása vagy a perem megmunkálása (vagy mindkettő) miatt a fényesebb csillagok körül zavaró, ronda god-ray alakult ki. A tükör peremét le kellett festenem. Így viszont már szép képet ad. 3. Tényleg nagyon érzékeny a kollimálásra.

Summary

Nagyon kedvelem, de hosszú út vezetett eddig. Rengeteget kellett dolgozni rajta, mire rendesen be tudtam állítani az optikai tengelyre mindent, és ehhez még a SW sportszerű nehezítést is adott a lötyögő tükörrel és a peremmel/karmokkal. Annak javaslom, aki szeret barkácsolni, nem fél a cső szétszedésétől. Akkor végül egy tényleg jó csövet szerezhet, de meg kell küzdeni érte. Nem szabad feladni. Ehhez viszont nagyon sokba kerül. Hozzá kell tennem, hogy Éder Iván mind a beszerzésnél, mind a barkácsolásnál sok segítséget adott.

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The product comes with 3 years warranty

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