- Description
- Specifications
The new Sky-Watcher Quattro Imaging Newtonian with dual-speed focuser incorporates a superb mirror-set with two significant advantages over competing products. A 2" dual-speed 10:1 ratio focuser is included for excellent focusing precision. Additionally, the tube length has been slightly shortened to optimize performance for prime-focus photography. Even better performance for astro-photography, and visual use, can be achieved when used in combination with the Sky-Watcher Quattro coma corrector.
- 305 mm Newtonian reflector
- 1000 mm (f/4)
- Fully multi-coated borosilicate mirrors
- 3” dual-speed 10:1 linear power focuser
- 8×50 finderscope
- Tube rings with D-style dovetail bar
| SKU | S11230 |
| UPC | 050234112307 |
| Optical Info | |
|---|---|
| Optical Design | Newtonian |
| Mirror Coatings | 94% Aluminum |
| Glass Type | Borosilicate |
| Primary Aperture (mm) | 305 |
| Primary Edge Thickness | 38mm |
| F/Ratio | 4 |
| Focal Length (mm) | 1200 |
| Secondary Diameter | 102mm |
| Secondary Obstruction (by diameter) | 33% |
| Secondary Obstruction by Area | 11% |
| Observational Info | |
| Dawes Limit | 0.38 |
| Rayleigh Limit | 0.46 |
| Limiting Mag. | 14.9 |
| Minimum Magnification | 43 |
| Maximum Magnification | 600 |
| Light Gathering (compared to next size down) | 44% |
| General Info | |
| Focuser | 2" Dual Speed Crayford |
| OTA Length (Retract/Ext.) | 42.5" |
| OTA Outer Diameter | 14.25" |
| OTA Weight (with accessories) | 57 |
| Accessories | |
| Included Finder | 9x50 Finder |
| Included Diagonal | No |
| Mounting Accessories | Rings/D-Rail |
| Included Eyepieces | None |
| Included Case | No |
| Corrector | No (optional) |
You may also like
Recently viewed
Recent Blog Posts
View allZWO Duo camera's and compatible image circles
Maximize Performance with the Right Image Circle for Your ZWO ASI2600 and ASI585MC Air Cameras
If you're using one of the latest ZWO ASI Air cameras,
Read More
Read More
Navigating Optolong Filters: L-eNhance, L-eXtreme, and L-Ultimate for Astrophotography
Navigating Optolong Filters: L-eNhance, L-eXtreme, L-Ultimate, and L-Quad Enhance for Astrophotography
If you're capturing the night sky with a color
Read More
Read More
May 2025 The night sky this month. Galaxy season wraps up.
May is an exciting month for astronomers and skywatchers, offering captivating celestial events as galaxy season winds down and we prepare for the dar
Read More
Read More