Sky-Watcher · Newtonian
Sky-Watcher Quattro 300P
Fast, affordable, and built for deep sky imaging: the Sky-Watcher Quattro 300P delivers serious aperture at an accessible price.
Price updated Mar 22, 2026
Performance Scores
Overview
The Sky-Watcher Quattro 300P is a 12-inch f/4 Newtonian astrograph designed primarily for astrophotography, though it handles visual observing capably as well. The fast focal ratio means you can capture faint nebulae and galaxies in significantly shorter exposures than you would with a slower optical tube, a real advantage when you are working with limited clear nights. The 305mm aperture gathers substantial light, giving you genuine reach into faint deep sky objects.
The oversized secondary mirror is sized to fully illuminate both APS-C and full-frame camera sensors without vignetting, which matters if you plan to upgrade your camera later. Knife-edge baffles help control stray light, keeping your images cleaner. The dual-speed Crayford focuser gives you fine control when nailing precise focus, which is critical at f/4 where the focus window is tight.
That f/4 focal ratio also means this scope demands a good coma corrector for wide-field imaging, as stars toward the edges will show coma without one. Factor that into your budget. At roughly $1,995 on an equatorial mount, with rings, a dovetail, and a 9x50 finder included, this is a well-rounded package for an imager ready to move into larger aperture.
At a Glance
304.8mm
Aperture
f/4
Focal Ratio
22.23kg
Weight
Specifications
Key Features
- 305mm aperture collects enough light to image faint galaxies, nebulae, and star clusters in reasonable exposure times
- f/4 focal ratio produces exposures roughly six times faster than an f/10 tube, shortening total imaging sessions considerably
- Oversized secondary mirror fully illuminates full-frame and APS-C sensors, making it compatible with a wide range of cameras
- Dual-speed Crayford focuser provides the fine adjustment needed to achieve precise focus at a fast focal ratio
- Knife-edge baffles reduce internal reflections and stray light, improving contrast in both imaging and visual use
- Ships as a complete package including equatorial mount, tube rings, Vixen dovetail, and 9x50 finder, reducing additional purchases needed to get started
- A coma corrector is strongly recommended for astrophotography use, as f/4 optics will produce noticeable coma toward image corners without one
Customer Reviews
4 reviews
If you are looking for a scope that is fast and has excellent optical performance, this is it. When paired with the SkyWatcher Quattro coma corrector it delivers a wonderfully corrected field across an APS-C sized sensor. I have pared mine with the ZWO ASI2600MM which gives an image scale of 0.647 a...