Sharpstar 13028HNT 130 mm f/2.8 Hyperbolic Astrograph OFFER- with 32mm Guidescope

Sharpstar Hyperboloid Astrograph with 130 mm Aperture and f/2.8

With the 1302.8HNT Hypergraph 130, Sharpstar has created a telescope for mobile astrophotography. With a tube length of less than 40 centimeters, the "small" Hypergraph even fits into airline luggage. On the sky, however, the performance is remarkable. The fast focal ratio of f/2.8 allows you to properly expose an object in just one night, or even focus on multiple objects.

The 2-element corrector offers very good field correction with full illumination beyond APS-C format. With a flat, you can even use full-frame cameras.

The working distance of 55 mm from the M48 thread on the focuser allows easy use of all common astro cameras, DSLR and also mirrorless system cameras.

The advantages and features of the TS hypergraphs at a glance:

Optics optimized for astrophotography with high resolution over the entire usable image field.

Carbon tube for much better focus stability than a metal tube. No need to readjust focus when temperature changes. Images are sharper.

Secondary mirror is built in with the necessary offset, the illumination of the image field is more uniform.

Despite the extreme focal ratio, the telescope collimates well and it holds collimation well during transport.

The focuser has been further improved and now allows even better focusing. It holds the focus position perfectly even over a longer period of time.

Dual-speed focusing is already built in, which is also necessary with the extreme focal ratio of f/2.8.

High quality CNC tube rings and a GP/EQ5 style dovetail bar are included.

Carrying handle with mounting surface for finder shoe

Easy camera adaption via the M48x0.75 connection thread of the focuser. The working distance is 55 mm.

Astrophotographic results obtained with this telescope on Astrobin

Here you can find some astrophotographs made with this telescope model: Link to Astrobin

Simple camera adaption via the screw thread of the focuser

With such a high resolution and fast optics, a screwed adaption of the camera is necessary. This prevents tilting and thus blurred stars at the edge.

The 2.5" R&P focuser has a M48x0.75 male thread in addition to the M63x0.75 female thread. The working distance from this thread is exactly 55 mm. This corresponds, for example, exactly to the distance required by an SLR camera and the matching T-adapter. Astro cameras, such as those from ZWO, are also already supplied with an adapter kit to M48, which takes exactly this distance into account.

Practical tip from Teleskop-Service:

The Hypergraph convinces by its short design. For incident light, such as lanterns and similar stray light, it makes sense to use a flexible dew shield. A good dew shield not only reduces the risk of dew, it also prevents stray light from entering the tube. This also improves the contrast of the image.

This is how we hand over the hypergraph to the star friend:

The hypergraphs must undergo a complete optimization and check at Teleskop-Service after transport. We have to invest several hours of time in each telescope, only in this way you will get an operational telescope. The individual steps are:

Removal of the main mirror cell and tightening of all screws, as they are usually loose.

Optimizing the fit of the main mirror in the cell - not too tight and not too loose.

Cleaning the main mirror and the inside of the tube.

Checking and optimization of the focuser

Collimation of the whole system and check of the collimation stability

Creation of the manufacturing protocol and preparation for shipment.

Manuals

There is a PDF guide for collimation, you can download it here.
In addition, the instructions for collimating the similar Hypergraph6 are available as a PDF.

Product video

There is a product video for this telescope from the manufacturer:



There is a product video by Teleskop-Service for the hyperbolic astrographs in general:

Astrophotographic results obtained with this telescope on Astrobin

Here you can find some astrophotographs made with this telescope model: link to Astrobin and second link to Astrobin (only few images)

Four customer photos

Our customer Andreas Tofahrn from near Frankfurt (Germany) has imaged several deep sky objects with this telescope:

Object: Andromeda Galaxy (M 31)

Photographer: Andreas Tofahrn (Germany)
Telescope: TS-Optics Hypergraph 130 mm f/2.8 (Hypergraph130)
Filters: Antlia LRGB filter set 36 mm (LRGB-V36mm)
Imaging camera: ZWO ASI2600MM Pro (ASI2600MM-P)
Exposure: 3x10x120s RGB, 20x60s L
Mount: Skywatcher HEQ-5 Pro (HEQ5skyscan)
Software: PixInsight, BlurXTerminator


Object: Veil Nebula Complex (NGC 6992 / NGC 6960 / NGC 6974)

Photographer: Andreas Tofahrn (Germany)
Telescope: TS-Optics Hypergraph 130 mm f/2.8 (Hypergraph130)
Filters: none
Imaging camera: ZWO ASI2600 MC Pro (ASI2600MC-P)
Exposure time: 37 min
Mount: Astro-5 mount (probably similar to Bresser EXOS-2, Celestron AVX or Skywatcher EQ5)
Software: PixInsight, BlurXTerminator


Object: Heart Nebula (IC 1805)

Photographer: Andreas Tofahrn (Germany)
Telescope: TS-Optics Hypergraph 130 mm f/2.8 (Hypergraph130)
Filters: Antlia LRGB filter set 36 mm (LRGB-V36mm), ZWO 7 nm narrowband filter set 36 mm (ZWONBSET36)
Imaging camera: ZWO ASI2600 MC Pro (ASI2600MC-P)
Exposure times: H-alpha 18x 480 s (2.4 h), [O III] 19x 600 s (3.1 h), [S II] 19x 480 s (2.5 h), RGB 3x 22 min (1.1 h)
Mount: Skywatcher HEQ-5 Pro (HEQ5skyscan)
Software: AstroPixelProcessor, PixInsight, PhotoShop


Objekt: Kaliforniennebel NGC-1499)

Photographer: Andreas Tofahrn (Germany)
Telescope: TS-Optics Hypergraph 130 mm f/2.8 (Hypergraph130)
Filters: Antlia LRGB filter set 36 mm (LRGB-V36mm), ZWO 7 nm narrowband filter set 36 mm (ZWONBSET36)
Imaging camera: ZWO ASI2600 MC Pro (ASI2600MC-P)
Exposure times: H-alpha 26x 480 s (3.5 h), [O III] 38x 600 s (6.3 h), [S II] 37x 480 s (4.9 h), RGB 3x 1560 s (1.3 h)
Mount: Skywatcher HEQ-5 Pro (HEQ5skyscan)
Software: AstroPixelProcessor, PixInsight, PhotoShop

Many thanks to Andreas Tofahrn for the great photographs!

More customer photos

Our customer Joshua Carter from Wakayama (Japan, originally Arkansas in the USA) has also made great images with this telescope:

Object: Boogeyman Nebula (LDN 1622)

Photographer: Joshua Carter (Japan)
Observation site: Wakayama (Japan), Bortle 3
Telescope: Sharpstar Hypergraph 130 mm f/2.8 (Hypergraph130)
Filter: Astronomik L-2 (8H00PL)
Imaging camera: ZWO ASI294MC Pro (ASI294MCpro)
Exposure: 210x120? (7 h), Gain 120, -20 °C, plus darks, flats, dark flats
Off-Axis guider: ZWO OAG-L (ZWO-OAG-L)
Guiiding camera: ZWO ASI174 Mini (ASI174MINI)
Mount: iOptron GEM45 (IO7603A)
Controller: ASIair plus (ASIAIRPLUS)
Software: DeepSkyStacker, PixInsight, RC-Astro BXT/NXT/SXT, Photoshop


Object: Reflexion nebula in Andromeda (LBN 534 and VdB 158)

Photographer: Joshua Carter (Japan)
Observation site: Wakayama (Japan), Bortle 3
Telescope: Sharpstar Hypergraph 130 mm f/2.8 (Hypergraph130)
Filter: Astronomik L-2 (8H00PL)
Imaging camera: ZWO ASI294MC Pro (ASI294MCpro)
Off-Axis guider: ZWO OAG-L (ZWO-OAG-L)
Guiiding camera: ZWO ASI174 Mini (ASI174MINI)
Mount: iOptron GEM45 (IO7603A)
Controller: ASIair plus (ASIAIRPLUS)
Software: DeepSkyStacker, PixInsight, RC-Astro BXT/NXT/SXT, Photoshop


Object: Cocoon Nebula (IC 5146 with SH2-125)

Photographer: Joshua Carter (Japan)
Observation site: Wakayama (Japan), Bortle 3
Telescope: Sharpstar Hypergraph 130 mm f/2.8 (Hypergraph130)
Filter: Astronomik L-2 (8H00PL)
Imaging camera: ZWO ASI294MC Pro (ASI294MCpro)
Off-Axis guider: ZWO OAG-L (ZWO-OAG-L)
Guiiding camera: ZWO ASI174 Mini (ASI174MINI)
Mount: iOptron GEM45 (IO7603A)
Controller: ASIair plus (ASIAIRPLUS)
Software: DeepSkyStacker, PixInsight, RC-Astro BXT/NXT/SXT, Photoshop


Object: Pleiades (M45)

Photographer: Joshua Carter (Japan)
Observation site: Wakayama (Japan), Bortle 3
Telescope: Sharpstar Hypergraph 130 mm f/2.8 (Hypergraph130)
Filter: Astronomik L-2 (8H00PL)
Imaging camera: ZWO ASI294MC Pro (ASI294MCpro)
Off-Axis guider: ZWO OAG-L (ZWO-OAG-L)
Guiiding camera: ZWO ASI174 Mini (ASI174MINI)
Mount: iOptron GEM45 (IO7603A)
Controller: ASIair plus (ASIAIRPLUS)
Software: DeepSkyStacker, PixInsight, RC-Astro BXT/NXT/SXT, Photoshop

Many thanks to Joshua Carter for the great photographs!

Comet photos

Andreas Tofahrn from near Frankfurt (Germany) also imaged a beautiful comet with this telescope:

Object: Comet C/2022 E3 (ZTF)

Photographer: Andreas Tofahrn (Germany)
Telescope: TS-Optics Hypergraph 130 mm f/2.8 (Hypergraph130)
Filters: Antlia LRGB filter set 36 mm (LRGB-V36mm)
Imaging camera: ZWO ASI2600 MC Pro (ASI2600MC-P)
Exposure: 217x 30 s RGB, ~1.8 h)
Mount: Skywatcher HEQ-5 Pro (HEQ5skyscan)
Software: AstroPixelProcessor, PixInsight, BlurXTerminator Tools, Photoshop RC-Astro Tools


Object: Comet C/2022 E3 (ZTF) close to Mars

Photographer: Andreas Tofahrn (Germany)
Telescope: TS-Optics Hypergraph 130 mm f/2.8 (Hypergraph130)
Filters: Antlia LRGB filter set 36 mm (LRGB-V36mm)
Imaging camera: ZWO ASI2600 MC Pro (ASI2600MC-P)
Exposure: ~1.5 h
Mount: Skywatcher HEQ-5 Pro (HEQ5skyscan)
Software: AstroPixelProcessor, PixInsight, Photoshop

Many thanks to Andreas Tofahrn for these beautiful photographs!

Question:
How can I attach the ZWO EAF to the focuser??

Answer from Teleskop-Service:
The EAF is attached via the clamping screw which blocks the adjustment of the focuser. No additional adapter is necessary.