Sky-Watcher Quattro-300P: the f/4 flagship
The Sky-Watcher Quattro-300P is the ultimate imaging Newtonian in the series: 305/1200mm at f/4. Twelve inches of aperture at full speed, for the photographer who wants to capture faint structures where others integrate for hours. The 21.8 kg tube belongs on an EQ8-class mount or fixed pier.
What can you photograph with it?
Everything where signal counts: faint nebulae, vast H-alpha regions, galaxies, and dust lanes. Where a slower system integrates for hours, an f/4 system captures the same on the sensor in half the time. Visually (with its own eyepieces), it is also a bright deep-sky telescope with a surprisingly sharp image in the center.
Why a Quattro?
The Quattro line is Sky-Watcher's fastest Newtonian series: f/4 means four times as much signal per minute as an f/8 system. The dual-speed Linear Power focuser (10:1) carries cameras without sagging and focuses at the pixel level. Note the fair caveat: no eyepiece is included. This is an astrograph; visual use is entirely possible, but with your own eyepieces.
This is how to get the most out of this telescope
- Collimation at f/4 is surgical work: check for every session with a good collimator. Our guide to collimation describes the routine.
- The aplanatic corrector belongs with it: Without a corrector, f/4 stars are comet-shaped at the edge. Factor this into the purchase, not afterwards.
- Mounting choice: EQ8 class or fixed pier; this is observatory equipment and you should treat it as such.
- Guiding the moon At this brightness, every arcsecond of pointing accuracy counts in the star points.
- Format: 21.8 kg tube: rely on two people or a permanent setup.
- Give the mirror some cooling time and consider a light shroud against stray light and dew.
- Visual assistance a 6 mm eyepiece magnifies 200x; but bring your own eyepieces, there are none in the box.
For whom yes and for whom no
Hello The photographer with observatory ambitions for whom speed and aperture both need to be maximized.
Not Without a heavy fixed setup, this potential remains untapped; If you want photo results without mounting, guiding, and post-processing, then the smart telescopes the shorter route; ours Telescope Buying Guide for Beginners explain the trade-off.
Featured accessories
These accessories add the most after purchase:
- Aplanatic coma corrector f/4 at f/4, a corrector is not an option but a part of the optical system. The Sky-Watcher 2 inch Aplanatic Coma Corrector is specifically designed for the Quattro line and is a standard component.
- Cheshire eyepiece the Sky-Watcher Cheshire Eyepiece makes the critical f/4 collimation accurate and repeatable.
- Light Pollution Filter (2 inch) gets noticeably more contrast out of your shots under Dutch or Belgian skies.
- Moon Filter 13%: with this opening, the moon is blindingly bright; the Omegon Moon Filter 13% (1.25 inches) The light fades. More explanation in our Moon filter guide.
Technical specifications
| Specification | Details |
|---|---|
| Optical design | Newtonian astrograph (parabolic) |
| Opening | 305 mm |
| Focal length | 1200 mm (f/4) |
| Focuser | 2 inch dual-speed Linear Power (10:1) |
| Seeker | 9x50 optical with crosshair |
| Ocular Adapters | 1.25 and 2 inch (eyepiece not included) |
| Tube weight | 21.8 kg |
| Mount | No (OTA) |
Included in the box
- Sky-Watcher Quattro-300P Optical Tube
- 2 inch dual-speed linear power focuser with adapters
- 9×50 optical viewfinder
- Note: no eyepiece included (astrograph)
- Free: Stargazer's Handbook by Telescoop.nl (16 pages, Dutch language)
Free Stargazers' Handbook
Every Sky-Watcher telescope from Telescoop.nl comes with our own Stargazer’s Handbook in the box. It’s a 16-page booklet that helps you get started on your first few nights: how to align the finder scope, what magnification to start with, why the image sometimes wobbles, and when a telescope does or doesn’t need to be collimated. It’s not a thick book—just the essentials you really need when you’re starting out.
Honest advice from observers
We sell and use the Sky-Watcher line ourselves. In our Sky-Watcher brand guide We'll explain which series are strong and which you'd rather skip. View the full range on our Sky-Watcher brand page. Unsure about mounting or a corrector? Call or email us: we're happy to help with photo setups. Ordered before 11:59 PM is delivered quickly, in the Netherlands and Belgium.
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