Skywatcher Quattro 150P Imaging Newtonian with Aplanatic Super Coma Corrector

Skywatcher Quattro 150P Imaging Newtonian OTA

Superb fast F/4 Optics

The Quattro 150P is a high-quality and fast 150mm f/4 instrument designed primarily for astrophotography but also works well for visual use. The telescope features a high quality, internally darkened rolled steel tube of excellent rigidity. 

Supplied complete with it's own bespoke, optically matched  M48 Aplanatic Super Coma Corrector comprising four lens elements including one ED element, that shortens the focal ratio to f/3.45. Also includes with a set of tube rings, 45mm dovetail bar, piggyback camera adaptor and a 6x30 fully multi-coated finderscope with crosshair reticle. 1.25” & 2” eyepiece adaptors are included allowing virtually any standard 1.25” or 2” eyepiece to be used.

Equipped with a 2" Dual-Speed Linear Power Focuser that utilises 4 precision ball bearings to support the drawtube and provides great stability and zero image shift while supporting a heavy eyepiece or camera. Moving the drawtube by the roller rather than a rack and pinion ensures exceptionally smooth operation, great feel and precise adjustability. The dual-speed feature has a second focus knob that has a 10:1 speed reduction to provide the super-fine adjustments even the most demanding users can appreciate.

The heart of any Newtonian telescope is in the quality of its mirror optics. The accuracy of the figure, the material they are made from and the coatings applied all play an important part. Sky-Watcher’s prowess and reputation for commercial mirror making is well known and one of the jewels in its crown. Sky-Watcher has demonstrated its unwavering ability to produce telescope mirrors of consistent high quality over decades. Parabolic (or Paraboloidal) mirrors are a complex shape so need to be well made to provide the high performance expected of them. A properly figured parabolic primary mirror will eliminate spherical aberrations by bringing the light rays to the same focal point. Sky-Watcher’s diffraction-limited parabolic primary mirrors will produce sharp, contrasty images that are full of detail.

The secondary mirror is held in place by four specially designed 0.5mm thin spider vane supports which are extremely rigid when tensioned. They serve to minimise obstruction to the light path, allowing the passage of more precious photons and keeping diffraction spikes to an absolute minimum. 

Both primary and secondary mirrors are finished with Sky-Watcher’s RAQ™ Radiant Aluminium Quartz coatings, which include layers of aluminium, tantalum pentoxide and silicon dioxide for a brilliant, highly durable finish with 94% reflectivity that will last for years.

The colour scheme is not just an aesthetic. The OTA is tastefully finished in Sky-Watcher’s proprietary Black Diamond flecked metallic paintwork and features, by design, complementary contrasting white painted surfaces. The white surfaces are a highly practical feature for providing more visibility, which can help prevent your expensive and carefully aligned telescope from being knocked accidentally in the dark.

With a tube weight of 5kg, this OTA would be a good match for the EQ5 Pro, EQM-35 Pro and EQ-AL55i Pro mountings

SPECIFICATION

• Highest Practical Power (Potential) x300
• Diameter of Primary Mirror 150mm
• Telescope Focal Length 600mm (f/4)
• 6x30 Finderscope in Centring Bracket (with crosshair reticle)
• M48 Aplanatic Super Coma Corrector 2"/50.8mm (Image circle 21.7mm, APS-C compatible, 55mm required back-focus)
• Focal Ratio with Coma Corrector: F/3.45
• Parabolic primary mirror & secondary mirror with Radiant™ Aluminum Quartz (RAQ™) coating providing up to 94% reflectivity with optimal durability and long term performance
• Secondary Mirror Diameter 64mm (minor axis)
• 1.25” and 2” Eyepiece Adaptors supplied (no eyepieces supplied)
• 2" (50.8mm) Dual-Speed 10:1 Linear Power Focuser
• Tube Rings & 45mm Dovetail Bar
• Piggyback DSLR Camera Adaptor
• 0.5mm Ultra-Thin Secondary Mirror Supports
• Weight 5.7kg
• 73% more Light-Gathering than 114mm

What's in the box:

• Quattro 150P Optical Tube
  
• Aplanatic Super Coma Corrector
• 6x30 Finderscope
• Vixen Style Dovetail
• Tube Rings
  

"“….The Quattro demonstrated that despite its astrograph pedigree, it can offer worthy visual observations if desired. With our CCD camera attached to the corrector, the Quattro 150P really came into its own. Focusing was easy and accurate, and the star shapes in the corners of our 16mm sensor images were perfectly acceptable. The Quattro has thin spider vanes, producing sharp diffraction spikes, so the Pleiades cluster, M45, proved to be an ideal target and we were able to capture plenty of nebulosity with three-minute exposures. The wide view on offer is great for large targets such as the Andromeda Galaxy, M31, or the nearby Triangulum Galaxy, M33, and in both cases we were impressed by the fast capture of plenty of good quality data….”."
BBC Sky At Night Magazine