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Deepsky imaging with short exposure times thanks to the fast f/3.9 focal ratio.
Widefield nebula and galaxy work, especially with modern CMOS cameras.
Astroimagers who want speed without going to hyperbolic or RASA systems.
Intermediate to advanced users who want a serious upgrade from beginner refractors.
Fast optics = shorter subs, ideal for Bortle 57 skies.
Large aperture gathers enough light for faint nebulae and galaxies.
800mm focal length hits a sweet spot for mediumsize targets like:
Because the OTA is ~9kg before cameras, guidescopes, and correctors, it pairs well with:
For astrophotography, aim for a mount with 1518kg imaging capacity.
Skywatcher's 8" f/3.9 Quattro Imaging Newtonian Telescope is one of the most popular fastastrophotography reflectors because it delivers a wide, bright field, excellent for nebulae and galaxies, while staying affordable and mountfriendly.
Its shortened 800mm focal length produces a fast f/3.9 focal ratio to reduce the exposure times required for capturing detailed images of the Moon, planets, and deep-sky objects.
To further boost performance, borosilicate mirrors with a low coefficient of thermal expansion to reduce the effects of expansion/contraction when the temperature fluctuates.
This helps limit distortion that can occur when moving the OTA from indoors to outdoors.
The entire optical system is fully multicoated to increase the reflectivity of all surfaces to produce brighter and sharper images.
For imaging and visual use, the ability to achieve tack-sharp focus is critical, so Sky-Watcher outfitted the Quattro with a large 2" Crayford-style focuser.
This design uses a steel rod held tightly against the focus tube under tension.
Using this toothless friction system eliminates backlash and enables ultrafine precision focusing.
A large coarse-focus wheel quickly brings subjects into rough focus, and the 10:1 fine-focus allows you to precisely focus it without the risk of losing it as soon as the knob is released.
Having the ability to use larger 2" accessories and eyepieces provides an immersive experience during observation sessions and the ability to use larger sensors for capturing images.
The Quattro is offered here without a mount or tripod for users who have a solid observation platform.
Its cradle ring assembly clamps over the OTA so you can position it for balancing when mounted and place the eyepiece precisely for more comfortable observations.
It also allows adjustment of the entire rig so you can avoid interference with other equipment and accessories.
A dovetail plate on the bottom of the cradle ring assembly makes this OTA compatible with any Vixen-style saddle.
Aperture: 200mm (8")
Focal length: 800mm
Focal ratio: f/3.9
Optical design: Parabolic Newtonian
Tube length: ± 750mm
Weight: ± 8.8kg (OTA only)
Focuser: 2" dualspeed Crayford (often upgraded by imagers)
Included: Tube rings, dovetail, 9×50 finder, primary mirror cooling fan
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