TS Boren-Simon 8" f/3,6 Powernewton Astrograph

Boren-Simon 8" f/3.6 Powernewton Astrograph - Aperture 200 mm / focal length 730 mm - fully corrected field

- an astrocamera at f/3.6 for demanding Astrophotography with highest definition
- Modified line with considerable improvements


Sky & Telescope Hot Product 2012


Extreme longtime exposures for deepest images and faintest details are a thing of the past! With the 8" f/3.6 astrograph you are able to produce sharper and more detailed images of deepsky objects in a comparable short time. Clear nights are more than rare so start collecting as much data as you can - in all channels.

The 8" f/3.6 Astrographs main advantages:

• Extreme fast system of f/3.6 at 200 mm aperture
• Focal length of 730 mm - ideal for Nebulae, Galaxies and Clusters
• Enough backfocus of 65 mm starting from T2 thread - even suitable for DSLR cameras
• Fully illuminated and corrected field of APS formats
• Easy and fast to be used because of the open system

The improvements that make this astrograph deliver the outstanding performance:

• Carbonfibre Tube: We replace the standard metal tube by an optimized carbonfibre tube. By reducing the telescopes weight, it´s rigidity increases clearly. That is essential for an f/3.6 system.
• Better Focuser: The very basic Boren Simon focuser is being replaced by a much more rigid and low profile Baader Steeltrack focuser that carries even higher loads and heavy cameras without flexing problems.
• Optimized Focus: Using the low-profile Steeltrack offers the advantage to reduce the focal area down from 165 mm to 131 mm above tube. You`ll receive a much better illumination without focussing problems.
• Orion UK Secondary Mirror 70 mm: Instead of the 70 mm standard a 70 mm secondary with Orion 97 % HILUX coating is used. Besides the instrument is optimized with the correct offset.

The illumination potential of the 8" f/3.6 ED Astrograph:

The Astrograph is an optimized system for being used in combination with DSLR cameras, it fully illuminated a diameter of 25 mm. That is more than most f/4 or f/5 Newtonians and the secondary mirror guarantees a fully illumination of the correctors field lens.

One telescope - different focals!

The astrographs compressor can easily be replaced by a coma corrector. There won´t occur any problems to reach focus.


Delivery contains:

• 8" Astrograph with 200 mm aperture and carbonfibre tube
• Baader Steeltrack focuser with 1:10 dual speed
• 4-Element ED Reducer and Corrector
• Tuberings
• 8x50 Viewfinder
• GP Level Dovetail

Powerful Boren-Simon 8" f/3.6 Astrograph with full Correction over the Field.