Quattro 250P Imaging Newtonian
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Details
The Sky-Watcher Quattro 250P Imaging Newtonian is a versatile telescope designed for astronomy enthusiasts who seek a swift and powerful instrument for both astrophotography and visual exploration. Its fast f/4 focal ratio allows for significantly shorter exposure times, making it an excellent choice for capturing deep-sky objects with clarity and efficiency.
This telescope combines a large aperture with advanced coatings and an optimized optical design, catering to users aiming to capture vivid images or enjoy detailed celestial views without compromise.
Rapid Imaging Capability
With its swift f/4 focal ratio, the Quattro dramatically reduces exposure durations, enabling astrophotographers to collect light up to six times faster than traditional slower telescopes. This efficiency opens new possibilities for capturing faint deep-sky phenomena with enhanced detail.
Precision Optics
The borosilicate mirrors are treated with a specialized Radiant Aluminum Quartz coating, delivering high reflectivity that ensures crisp, bright images. The parabolic shape of the primary mirror is tailored to optimize image quality across the field, benefiting both imaging and visual applications.
Enhanced Illumination for Imaging Sensors
An oversized secondary mirror is incorporated to maximize light delivery to full-frame DSLR and CCD cameras, ensuring even illumination and minimizing vignetting, which is crucial for high-quality astrophotography.
Robust and Stylish Construction
The optical tube is crafted from rolled steel and finished with a distinctive glossy metal-flake Black Diamond coating, combining durability with aesthetic appeal suitable for serious observers.
Fine Focusing Control
Equipped with a 10:1 dual-speed 2-inch Crayford focuser, this telescope allows for both rapid adjustments and precise fine-tuning of focus, a vital feature for achieving sharp images during long exposure sessions.
Complete Accessory Package
The package includes essential accessories such as a 9x50 finderscope for easy target acquisition, tube rings, a V-style dovetail plate for versatile mounting options, and adapters for eyepieces of different sizes, providing a ready-to-use solution for diverse observational needs.
Specifications
| Optical Design | Newtonian |
|---|---|
| Primary Aperture | 254 mm |
| True Aperture | 257 mm |
| Focal Length | 1000 mm |
| Focal Ratio | f/4 |
| Mirror Coatings | Radiant Aluminum Quartz (RAQ)™ with 94% reflectivity |
| Glass Type | Borosilicate |
| Secondary Diameter | 89 mm |
| Secondary Obstruction (Diameter) | 35% |
| Secondary Obstruction (Area) | 12% |
| Dawes Limit | 0.46 |
| Rayleigh Limit | 0.55 |
| Limiting Magnitude | 14.5 |
| Minimum Magnification | 36 |
| Maximum Magnification | 500 |
| Light Gathering Compared to Next Size Down | 57% |
| Focuser | 2" Dual Speed Crayford (10:1) |
| Focuser Draw Tube Thread | Male M54x0.75 (after eyepiece holder removal) |
| OTA Length (Retracted/Extended) | 36.5" |
| OTA Outer Diameter | 11.375" |
| OTA Weight (with accessories) | 36.5 lbs |
| Included Finder | 9x50 Finderscope |
| Included Accessories | Tube Rings, V-style Dovetail Plate, 1.25" and 2" Eyepiece Adapters |
| Country of Manufacture | China |
Materials + Care
We prioritize quality in selecting the materials for our items, choosing premium fabrics and finishings that ensure durability, comfort, and timeless appeal.
Shipping + Returns
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.
The Sky-Watcher Quattro 250P Imaging Newtonian is a versatile telescope designed for astronomy enthusiasts who seek a swift and powerful instrument for both astrophotography and visual exploration. Its fast f/4 focal ratio allows for significantly shorter exposure times, making it an excellent choice for capturing deep-sky objects with clarity and efficiency.
This telescope combines a large aperture with advanced coatings and an optimized optical design, catering to users aiming to capture vivid images or enjoy detailed celestial views without compromise.
Rapid Imaging Capability
With its swift f/4 focal ratio, the Quattro dramatically reduces exposure durations, enabling astrophotographers to collect light up to six times faster than traditional slower telescopes. This efficiency opens new possibilities for capturing faint deep-sky phenomena with enhanced detail.
Precision Optics
The borosilicate mirrors are treated with a specialized Radiant Aluminum Quartz coating, delivering high reflectivity that ensures crisp, bright images. The parabolic shape of the primary mirror is tailored to optimize image quality across the field, benefiting both imaging and visual applications.
Enhanced Illumination for Imaging Sensors
An oversized secondary mirror is incorporated to maximize light delivery to full-frame DSLR and CCD cameras, ensuring even illumination and minimizing vignetting, which is crucial for high-quality astrophotography.
Robust and Stylish Construction
The optical tube is crafted from rolled steel and finished with a distinctive glossy metal-flake Black Diamond coating, combining durability with aesthetic appeal suitable for serious observers.
Fine Focusing Control
Equipped with a 10:1 dual-speed 2-inch Crayford focuser, this telescope allows for both rapid adjustments and precise fine-tuning of focus, a vital feature for achieving sharp images during long exposure sessions.
Complete Accessory Package
The package includes essential accessories such as a 9x50 finderscope for easy target acquisition, tube rings, a V-style dovetail plate for versatile mounting options, and adapters for eyepieces of different sizes, providing a ready-to-use solution for diverse observational needs.
| Optical Design | Newtonian |
|---|---|
| Primary Aperture | 254 mm |
| True Aperture | 257 mm |
| Focal Length | 1000 mm |
| Focal Ratio | f/4 |
| Mirror Coatings | Radiant Aluminum Quartz (RAQ)™ with 94% reflectivity |
| Glass Type | Borosilicate |
| Secondary Diameter | 89 mm |
| Secondary Obstruction (Diameter) | 35% |
| Secondary Obstruction (Area) | 12% |
| Dawes Limit | 0.46 |
| Rayleigh Limit | 0.55 |
| Limiting Magnitude | 14.5 |
| Minimum Magnification | 36 |
| Maximum Magnification | 500 |
| Light Gathering Compared to Next Size Down | 57% |
| Focuser | 2" Dual Speed Crayford (10:1) |
| Focuser Draw Tube Thread | Male M54x0.75 (after eyepiece holder removal) |
| OTA Length (Retracted/Extended) | 36.5" |
| OTA Outer Diameter | 11.375" |
| OTA Weight (with accessories) | 36.5 lbs |
| Included Finder | 9x50 Finderscope |
| Included Accessories | Tube Rings, V-style Dovetail Plate, 1.25" and 2" Eyepiece Adapters |
| Country of Manufacture | China |
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