This telescope is checked by us before delivery and in any case pre-adjusted. The focuser is set.


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 TS-Optics Boren-Simon 150mm 6 "- f / 2.9 Power-Newton Astrograph - metal tube

Excellent and crispy astro images with extreme depth with a moderate expenditure of time - that's what the Powernewtons from Teleskop Service offer.

- Short exposure times thanks to f / 2.9 - ideal for uncooled DSLR cameras and astro cameras
- Moderate exposure times with narrow-band fog filters - ideal for use near the city
- Very good field sharpness thanks to professional Ackerman reducer and coma corrector
- Solid steel tube for optimal rigidity and adjustment stability
- Overall length only 530 mm, weight only 5 kg - is very well carried by portable mounts
- Back focus 66.8 mm from the M48 thread of the corrector - also suitable for off-axis guiding
- Precise MONORAIL 2 "focuser for more stability than with conventional Crayford focusers
- Suitable for DSLR cameras up to APS-C sensor format and for CCD cameras up to sensor diameter 30mm

With the Boren-Simon-Powernewton you can achieve deep astro images in just one night, where normally many nights would be necessary.

And thanks to the professional ASA reducer corrector, these images show very good star sharpness without reflections. Collect enough raw material for a really final shot of the object in just one night.

The advantages of this 6 "-f / 2.9 Powernewton:

- Short exposure times thanks to f / 2.9 - ideal for uncooled DSLR cameras but also astro cameras.
- Moderate exposure times with narrow-band fog filters - ideal for use near the city
- Very good field sharpness thanks to professional Ackermann reducer / corrector
- High mechanical rigidity thanks to the steel tube
- Overall length only 530 mm, weight only 5 kg - this is carried very well by portable mounts
- Solid 2 "MONORAIL focuser with micro reduction - supports DSLR and astro cameras without tilting
- Back focus 66.85 mm from the M48 thread - also suitable for off-axis guiding
- Illumination and correction up to APS chip format
- only 42% obstruction - usable visually

The advantages of the 6 "f / 2.9 astrograph over the Celestron Hyperstar system:

- As with the Newton, the camera is located on the side of the tube. Neither shadowing by the camera nor waste heat from cooled CCD cameras affects the quality of the image.
- The system is open at the front, so it cools down faster and is also less susceptible to dew fog
- The Astrograph offers a larger working distance than the Hyperstar and thus also enables the use of DSLR cameras or CCD cameras with filter wheels.

Illumination and correction of the 6 "-1: 2.9 astrograph: The back focus of the 6" -f / 2.9 Powernewton is 65 mm. The Kodak KAF8300 or ASI 1600 sensor are very well illuminated and also corrected well. Even DSLR cameras with APS-C sensors can be used well. With a flat, you can easily get rid of the slight edge shading.

Practical tip: Adaptation of DSLR cameras via T2 thread The working distance of the corrector is 66.85mm (+/- 0.5mm) from the M48 connection thread. If you want to connect your DSLR camera via the T2 thread, you need (from the corrector to the camera):

- M48AbstimmA05 - 0.5mm tuning ring
- TSM48-T2L - transition to T2 with 6.3mm length
- The distance from the T2 thread to the sensor is then exactly 55mm - perfect for the combination of T2 ring and DSLR camera.

Switch from fast f / 2.9 to high resolution f / 4 in a few minutes:
One telescope, two focal lengths - this is also possible with the Boren-Simon astrograph. With the optional TSGPU "Superflat" Aplanatic coma corrector, which is optimized for f / 4 systems, you can turn the fast f / 2.8 astrograph into a high-resolution astrophotographically corrected Newtonian telescope with an aperture ratio of 1: 4 and 600 mm focal length.

The changeover takes place within a few minutes and the collimation remains completely intact.

Technical specifications:

Opening: 150 mm (6 ")
Focal length: 438 mm with reducer / corrector
Aperture: f / 2.9
Primary mirror: 94% reflectivity - 154 mm
Secondary mirror: 94% reflection - 63 mm minor axis
Corrector: 4-element ED corrector
Back focus: 65 mm distance to the optimal chip position
Focuser: 2 "TS MONORAIL with micro reduction
Threaded: M48 thread
Tube design: steel tube with high rigidity
Tube dimensions: 176 mm diameter, 530 mm length (with screws, without cover)
Weight: 5.3 kg

Scope of delivery:

- 6 "astrograph with 154 mm aperture - f / 4
- Dust cover
- TS MONORAIL with 1:10 reduction
- 4-element ED reducer and corrector
- 2 "extension sleeve with 35mm length
- pipe clamps
- 8x50 viewfinder