Quattro 300P — 300/1200 imaging Newtonian The Quattro 300P is a fast parabolic imaging Newtonian with a nominal 300 mm aperture and 1200 mm native focal length at f/4. Its low-expansion borosilicate primary is intended to reduce sensitivity to changing temperature during an imaging session.
Manufacturer model: Quattro 300P — 300/1200 imaging Newtonian · Specifications checked against manufacturer data on 2026-11-04
The Quattro 300P is a fast parabolic imaging Newtonian with a nominal 300 mm aperture and 1200 mm native focal length at f/4. Its low-expansion borosilicate primary is intended to reduce sensitivity to changing temperature during an imaging session.
Use a matching f/4 coma corrector to improve off-axis star shapes when imaging. Corrector spacing and camera adapters must follow the specification of the chosen corrector. A reduced focal ratio is not assigned to the native optical tube.
A 2-inch dual-speed linear-power focuser supports precise camera focus. The listed finder is 8×50.
The manufacturer’s published tube mass is 22.4 kg including rings but excluding finder. The 300P uses rings and a 75 mm-wide mounting bar, with no eyepiece included.
Sky-Watcher manufacturer documentation
Exact Quattro 300P manufacturer Japanese specification used. Weight includes rings and excludes finder. No focuser payload is published.
| Nominal aperture (mm) | 300 |
|---|---|
| Primary mirror material | Low-expansion borosilicate glass |
| Mounting bar width (mm) | 75 |
| Supplied mounting | Tube rings and wide dovetail |
| Eyepiece included | No |
| Weight configuration | Tube rings included; finder excluded |
Data sheet
Quattro 300P — 300/1200 imaging Newtonian The Quattro 300P is a fast parabolic imaging Newtonian with a nominal 300 mm aperture and 1200 mm native focal length at f/4. Its low-expansion borosilicate primary is intended to reduce sensitivity to changing temperature during an imaging session.
Manufacturer model: Quattro 300P — 300/1200 imaging Newtonian · Specifications checked against manufacturer data on 2026-11-04
