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Sky-Watcher

Sky-Watcher Quattro 200P

A fast f/4 Newtonian astrograph designed primarily for deep-sky imaging, sold as an OTA only and requiring a substantial equatorial mount to fulfil its purpose.

200mm aperture800mm focal lengthf/4Newtonian ReflectorIntermediate
Sky-Watcher Quattro 200P telescope

What you'll see

This is an imaging-first telescope, and what you'll 'see' is primarily what your camera sensor captures. At f/4 with 200mm of aperture, the Quattro 200P pulls in light rapidly — a 60-second sub-exposure at f/4 collects the same light as a 4-minute exposure at f/10. On an APS-C sensor, the 800mm focal length gives roughly a 1.7° × 1.1° field of view, enough to frame the entirety of M31's core and inner halo, the full span of M42 with the Running Man, the Veil Nebula's eastern and western arcs individually, or large emission regions like the Heart and Soul nebulae.

For deep-sky targets — the Rosette Nebula, North America Nebula, galaxies in the Virgo Cluster, and structures like the Cygnus Wall — the f/4 speed lets you build signal quickly even under moderately light-polluted skies when paired with narrowband filters. Galaxy groups and faint nebulae benefit enormously from the 200mm aperture, which resolves fine structure in spiral arms and HII regions that smaller astrographs miss.

Visually, if you do drop in an eyepiece, the 200mm aperture delivers satisfying views: globular clusters show partial star resolution, the Orion Nebula reveals wispy structure and the Trapezium, and galaxies like M51 show spiral hints. But the f/4 focal ratio means you'll fight coma at the field edges and the relatively short 800mm focal length limits planetary magnification. This telescope wants a camera, not an eyepiece.

Worth knowing before you buy

No mount included — budget at least £1,200 extra for a capable equatorial mount like the EQ6-R Pro

A coma corrector is essential at f/4; without one, edge-of-field stars are badly elongated for both imaging and visual u…

Collimation is critical at f/4 — much less forgiving than slower Newtonians, and will need frequent checking especially…

Full Specifications

Optics

Aperture200mm
Focal Length800mm
Focal Ratiof/4
Optical DesignNewtonian Reflector
CoatingsParabolic primary mirror, fully multi-coated

Mount & Tracking

GoTo (Computerised)No
TrackingNo

Focuser

Focuser Size2"
Focuser TypeDual-speed Crayford (10:1 reduction)

Physical

OTA Weight7.5kg
Tube MaterialSteel

Included Accessories

DiagonalNo