Orion 8″ f/4 Newtonian Reflector Astrograph

AED 2,580.00

0 reviews

Features and benefits of the Orion 8″ f/4 Newtonian Reflector Astrograph:

  • Aperture: 8 inches (200mm) parabolic primary mirror.
  • Focal Ratio: Fast f/4.0, ideal for astrophotography.
  • Focal Length: 800mm, providing a wide field of view.
  • Mirror Material: High-quality BK7 glass with enhanced aluminum coatings for over 92% reflectivity.
  • Compact and Lightweight: Weighs only 16 lbs and is 28 inches long.
  • Dual-Speed Crayford Focuser: 2″ focuser with 10:1 fine focus control.
  • Cooling Fan: 12V DC cooling accelerator fan for rapid temperature equilibration.
  • Accessories: Includes 8×50 finder scope, hinged tube rings, and a quick-collimation cap.
  • Compatibility: Works well with mid-sized equatorial mounts.
  • Coma Corrector: Recommended for optimal imaging performance (sold separately).
  • Enhanced Imaging: The fast f/4 focal ratio allows for shorter exposure times, capturing faint galaxies and nebulas efficiently.
  • Wide Field of View: Ideal for deep-sky astrophotography, providing bright and detailed images.
  • Portability: Lightweight and compact design makes it easy to transport and set up.
  • High Reflectivity: Enhanced aluminum coatings ensure bright and vivid images.
  • Quick Cooling: The cooling fan helps the primary mirror reach thermal equilibrium faster, ensuring stable imaging conditions.
  • Precision Focusing: The dual-speed Crayford focuser allows for precise adjustments, crucial for astrophotography.
  • Versatility: Suitable for both intermediate and advanced astrophotographers, and can also be used for visual observations with an optional eyepiece.

This telescope is a great choice for anyone looking to capture stunning images of the night sky!

Out of stock

Description

Orion 8″ f/4 Newtonian Reflector Astrograph

Discover the universe with the Orion 8″ f/4 Newtonian Reflector Astrograph, a telescope designed to meet the needs of both intermediate and advanced astrophotographers. This powerful instrument combines exceptional optical performance with user-friendly features, making it an ideal choice for capturing stunning images of the night sky.

Exceptional Optical Performance

At the heart of this astrograph is an 8-inch (200mm) parabolic primary mirror, crafted from high-quality BK7 glass. This mirror, with its enhanced aluminum coatings, delivers over 92% reflectivity, ensuring bright and vivid images. The fast f/4 focal ratio is perfect for astrophotography, allowing for shorter exposure times and capturing intricate details of faint celestial objects.

Wide Field of View

With an 800mm focal length, the Orion 8″ f/4 provides a wide field of view, making it ideal for deep-sky imaging. Whether you’re photographing expansive star clusters or intricate nebulae, this telescope offers the clarity and detail you need to produce breathtaking images.

Precision Focusing

The dual-speed Crayford focuser, featuring a 2″ focuser with 10:1 fine focus control, allows for precise adjustments. This is crucial for achieving sharp, detailed images, especially when working with high-resolution cameras.

Portability and Ease of Use

Weighing only 16 lbs and measuring 28 inches in length, this telescope is both lightweight and compact. Its portability makes it easy to transport to your favorite dark-sky locations, ensuring you can capture the best possible images wherever you go.

Rapid Cooling

The included 12V DC cooling accelerator fan helps the primary mirror reach thermal equilibrium quickly, ensuring stable imaging conditions. This feature is particularly useful for those long nights of astrophotography, where maintaining optimal conditions is key.

Complete Package

The Orion 8″ f/4 comes with essential accessories, including an 8×50 finder scope, hinged tube rings, and a quick-collimation cap. For those looking to achieve the best possible imaging performance, a coma corrector is recommended (sold separately).

Versatility

While primarily designed for astrophotography, this telescope is also suitable for visual observations with the addition of an optional eyepiece. This versatility makes it a valuable tool for any astronomy enthusiast.


Whether you’re capturing the delicate structures of distant galaxies or the vibrant colors of nebulae, the Orion 8″ f/4 Newtonian Reflector Astrograph is your gateway to the cosmos.

Orion 8" f/4 Newtonian Reflector Astrograph

Specifications for the Orion 8″ f/4 Newtonian Reflector Astrograph:

Specification Details
Best for viewing Fainter deep sky
Best for imaging Deep sky
User level Advanced
Optical design Reflector
Optical diameter 200mm
Focal length 800mm
Focal ratio f/4.0
Optics type Parabolic
Glass material BK-7
Eyepieces None
Resolving power 0.58 arc*sec
Lowest useful magnification 29x
Highest useful magnification 300x
Highest theoretical magnification 400x
Limiting stellar magnitude 14.2
Finder scope 8×50
Focuser 2″ dual-speed linear bearing Crayford
Secondary mirror obstruction 70mm
Secondary mirror obstruction by diameter 35%
Secondary mirror obstruction by area 12%
Mirror coatings/over-coatings Aluminum & Silicon Dioxide
Mount type Optical Tube without Mount
Astro-imaging capability Lunar, planetary & long exposure
Backfocus distance 83.2mm
Tube material Steel
Length of optical tube 27.5 in.
Weight, optical tube 16.0 lbs.
Additional included accessories 12V cooling fan with battery pack (req. 8 AA), Pair of hinged, felt-lined tube rings, 2″ extension tube for visual use
Other features Center-marked primary mirror for collimation
Warranty One year

 

What’s in the box:
8″ f4 optical tube assembly
8×50 finder scope and bracket
12V cooling fan (installed)
Pair of tube rings
2″ extension adapter (35mm length)
Quick-collimation cap
Vixen-style dovetail mounting bar
2.5mm and 5mm Allen wrenches

 

 

0.0 Average Rating Rated (0 Reviews)

Rated
0%
Rated
0%
Rated
0%
Rated
0%
Rated
0%

Be the first to review “Orion 8″ f/4 Newtonian Reflector Astrograph”

Your email address will not be published. Required fields are marked *

You have to login to add images.