Sky-Watcher Quattro 150P Imaging Newtonian Reflector
The Sky-Watcher Quattro 150P is a fast, precision-engineered Newtonian reflector designed from the ground up for astrophotography. With its f/4 optical system, premium Crayford focuser, and included coma corrector, the Quattro 150P delivers wide-field, high-contrast images with pinpoint stars—right out of the box. Whether you’re stepping into deep-sky imaging for the first time or adding a lightweight, fast OTA to your imaging toolkit, this 6" astrograph offers a compelling combination of performance and value.
f/4 Parabolic Optics for Deep-Sky Imaging
At the heart of the Quattro 150P is a 150mm parabolic primary mirror, delivering a fast 600mm focal length at f/4. This speed is ideal for capturing faint nebulae, distant galaxies, and rich star fields with shorter exposures—perfect for maximizing clear skies and minimizing total integration time.
Unlike spherical mirrors found in budget reflectors, the Quattro’s parabolic primary eliminates spherical aberration for sharp, focused stars across the field. Enhanced aluminum coatings improve light throughput and contrast, helping faint structures stand out with clarity, especially in narrowband imaging.
Coma, inherent in fast Newtonians, is corrected by the included Sky-Watcher Quattro coma corrector/reducer. This optical accessory flattens the field and eliminates edge distortions, giving you sharp stars from corner to corner even on APS-C and full-frame sensors.
Durable Aluminum Tube with Premium Crayford Focuser
The optical tube is built from rolled aluminum and finished in Sky-Watcher’s signature high-gloss black diamond livery. Weighing approximately 12.6 pounds (5.7 kg), the Quattro 150P is light enough for most medium-duty mounts like the HEQ5, EQ6-R, or similar class equatorials. Its compact form factor makes it ideal for portable rigs and field setups without compromising stability.
Focusing is handled by an 11:1 dual-speed 2" Crayford-style focuser. This rack-free design ensures smooth, backlash-free motion—essential for critical focus in imaging applications. The 11:1 micro-focus knob provides ultra-fine control for nailing focus with high-resolution sensors or using tools like a Bahtinov mask or electronic focus motor.
Compression ring adapters for both 2" and 1.25" accessories are included, allowing secure and scratch-free mounting of your camera, filter wheel, or diagonal.
Imaging-Ready Out of the Box
Unlike many astrographs that require additional investment in optical correctors, the Quattro 150P comes standard with Sky-Watcher’s dedicated coma corrector/reducer. This corrector not only flattens the image field but also acts as a reducer, improving your light-gathering efficiency and expanding the field of view—perfect for large nebulae and mosaic-friendly targets.
The scope offers generous back focus for a wide variety of imaging configurations, including filter wheels, off-axis guiders, and cooled CMOS cameras. With proper spacing, achieving flat, coma-free images is straightforward and reliable.
Included Accessories
Sky-Watcher has thoughtfully equipped the Quattro 150P with a suite of accessories to help you get started:
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11:1 dual-speed 2" Crayford-style focuser for precise, backlash-free focusing
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Coma corrector/reducer for flat, sharp stars across the entire field
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22mm Ultra Wide 70° eyepiece for immersive visual observing when desired
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1.25" and 2" eyepiece adapters with compression rings
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6x30 straight-through optical finderscope for easy star-hopping and initial alignment
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Tube rings with V-style dovetail plate, compatible with most standard mounts
Although this scope is primarily engineered for imaging, the included 22mm 70° eyepiece offers wide-field views for visual use. With the correct extension tube or diagonal, the Quattro 150P doubles as a capable visual telescope for casual observing.
Ideal For
The Sky-Watcher Quattro 150P is best suited for:
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Entry-level to intermediate astrophotographers
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Wide-field deep-sky imaging of nebulae, galaxies, and large star clusters
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DSLR and cooled CMOS imaging setups
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Lightweight and portable rigs for travel or backyard use
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Users seeking a complete imaging OTA with coma correction included
Final Thoughts
With a fast f/4 optical system, parabolic mirrors, and a coma corrector included right in the box, the Sky-Watcher Quattro 150P Imaging Newtonian offers exceptional value and versatility for astrophotographers. Its sharp optics, premium focuser, and generous accessory package make it one of the best turnkey imaging reflectors in its class.
If you're looking for an efficient, well-built, and thoroughly capable imaging OTA that doesn’t require a laundry list of upgrades to perform, the Quattro 150P deserves a spot in your observatory or imaging setup.
