Skip to product information
1 of 5

Omegon

Pro Astrograph 203/800 OTA Telescope

Pro Astrograph 203/800 OTA Telescope

Regular price £707.00
Regular price Sale price £707.00
Sale Sold out
Taxes included. Shipping calculated at checkout.

🟠 Supplier stock

✅ Orders accepted

🚚 Estimated delivery time: 3 weeks

Omegon Astrograph f/4: for unforgettable astrophotos
What telescope allows you to get incredible images with minimal effort? With an Omegon Astrograph it is easier than with normal telescopes. Because? The answer is obvious: an f/4 focal ratio means a large amount of light with a short exposure time. Enter the world of deep sky photography and admire faint galaxies or details in hydrogen nebulae. The Omegon Astrograph will take your astrophotos to another level...

Summary of advantages:

  • Astrograph f/4: telescope with an ultra-fast aperture rate for minimal exposure times
  • Short design suitable for medium frames
  • Large field of view for large objects: illumination of approx. 24mm
  • Parabolic main mirror with 94% reflection for clear images
  • Large secondary mirror - good lighting with DSLR cameras
  • Stable 2" Crayford eyepiece with 1.25" adapter and 1:10 reduction
  • Faster cooling = faster viewing: fan for main mirror


Main mirror with f/4 and 94% reflection
Astrographs are ideal for visual observations, although their potential is only fully realized with astrophotography. With an f/4 focal ratio, they are one of the "fastest" Newtonian telescopes, as they allow you to take photos with a shorter exposure time.

The secondary mirror and main parabolic mirror of BK7 have a reflection capacity of 94%, offering clearer and richer contrast images. If compared to the "usual" reflection of 88%, the difference is more than evident.

No shadows, just light: large secondary mirror
Attach your DSLR camera or a modern CCD camera to the telescope and enjoy impressive illumination over a very wide field of view. Thanks to its large secondary mirror (see below) you won't notice any shadows. It is perfect even for observation with 2" wide field eyepieces.

Images with fewer errors, more satisfying images
This telescope stands out for its design and short focal length. This astrograph is about 20% shorter than f/5 optical tubes, so it can also be attached to medium mounts. This way you will have good equipment without the need for heavy and expensive frames.

Another advantage is its short focal length, which makes this astrograph the perfect telescope for observing wide deep sky objects. This system corrects tracking errors better than telescopes with a longer focal length. With it you can capture impressive snapshots with little effort.

2" Crayford eyepiece with 1:10 reduction
With the Omegon V-Power eyepiece holder you will achieve the perfect focus for each celestial object. The 1:10 reduction ratio, robust ball bearings and guide rails guarantee the stability and ease of handling of this holder. In addition, it has an optimized design compatible with cameras weighing up to 5 kg without the risk of unwanted slipping.

  • Maximum precision: smooth and exact movements thanks to ball bearings and stainless steel guide rails
  • Suitable for heavy cameras and eyepieces up to 5kg without slipping
  • 1:10 reduction with scale for precision focusing
  • Anti-reflective grooves for high contrast
  • 2 to 1.25" adapter


Greater observation agility: fan for the main mirror
Just a slight, unnoticeable hum, but with a huge effect: the integrated 12V fan cools the main mirror up to 50% faster, so your telescope can reach optimal image quality much sooner. Long waits are over!

Supply volume and other information of interest:

  • 8" OTA astrograph with 70mm secondary mirror
  • Mark for secondary mirror for ease of adjustment
  • Vixen style 22cm prismatic rail and clamps
  • 2" extension, 35 mm
  • Optical tube 710 mm long and external diameter 230 mm
  • 12V fan for main mirror

Specifications

Optical system

 
Guy  Reflector
Type of construction  Newton 
Opening (mm)  203
Focal length (mm)  800
Aperture ratio (f/)  4
Resolution capacity  0.58
limit value (mag)  13.3
Light collecting capacity  820
Maximum useful magnification  400
Tube weight (kg) 8.6
tube material  Steel
Tube length (mm)  710
Bonus Aluminum and silicone dioxide
Tube diameter (mm) 230
Tube construction complete tube

Reflector

 
Main mirror design  parabolic
Secondary mirror obstruction  35
Secondary mirror diameter (mm) 70
Primary mirror vent  Yeah
Main mirror material BK7
Reflectivity 94

Telescopic eyepiece tube

 
Type of construction  Crayford 
Connection (eyepiece side)  2
Reduction Fine movement 1:10

Mount

 
Type of construction  OTA 
Frame type  rimless
GoTo  No

Accessories included

 
Several Main mirror ventilation
Extension tubes Yeah
Clamps Yeah
eyepiece adapter 1.25" & 2"
Dovetail plate Vixen-Style

In general

Series Pro Astrograph 
Total weight (kg) 8.6

Applications

 
Moon and planets Yeah
Nebulae and galaxies Yeah
Nature observation No
Astrophotography Yeah
Sun  not recommended (only with appropriate sunscreen)

Recommended for

Beginners  No
Advanced  Yeah
Observatories  No

View full details