Sharpstar hyperboloid Astrograph with 150 mm aperture and f/2.8
These astrographs are perfectly tailored to the modern demands of the digital astrophotography. In opposite to simple Newtonian telescopes with coma corrector, the TS Hypergraphs have a hyperbolic primary mirrror and an especially designed corrector in the focuser. With this, a perfectly corrected image circle of 45 mm diameter is obtained, with space-optimised design and a moderate secondary mirror with 70 mm diameter. At the same time the image quality is so high that even modern astro-cameras with very high resolution can be used.
The advantages and features of the TS Hypergraphs at a glance:
Optics optimised for astrophotography, with high resolution over the entire useable image field. Secondary mirror is installed with the necessary offset, the illumination of the field is more even. Despite the extreme focal ratio the telescope is well to collimate and it keeps collimation well even during transport. Dual-speed focusing is already built-in, this is necessary with the extreme focal ratio of f/2.8 High-quality CNC tube rings and a Losmandy style dovetail bar are included in the scope of delivery Carry handle with support area for a finder shoe Easy camera adaption via the M48x0,75 connection thread of the focuser. The working distance is 55 mm.Easy camera connection via the thread of the focuser
When dealing with such a highly resolving and fast optics, a threaded connection of the camera is necessary. In this way, tilting and therefore unsharp stars at the edge are avoided.
The 2.5" R&P focuser has, besides the female M63x0.75 thread, a male M48x0.75 thread. The working distance from this thread is perfectly 55 mm. This matches, for example, exactly the distance which a SLR camera and the matching T-adapter need. Even astro cameras, like the ones from ZWO, are already supplied with an adapter kit to M48 which takes account of exactly this distance.
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 primary mirror cell and tightening of all screws, as they are usually loose. Optimizing the fit of the primary mirror in the cell - not too tight and not too loose. The position of the secondary mirror on the holder is checked and, if necessary, the secondary mirror is correctly glued to the holder Cleaning the primary 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 Hypergraph130 are available
as a PDF.
Product video
There is a product video for the hyperbolic astrographs:
Astrophotographic results obtained with this telescope on Astrobin
Here you can find some astrophotographs made with this telescope model:
Link to AstrobinType: | Hyperbolic flat-field astrograph with corrector |
Aperture: | 150 mm |
Focal length: | 420 mm |
Focal ratio: | f/2.8 |
Image circle: | 45 mm diameter with optimum correction |
Secondary mirror diameter: | 70 mm |
Camera connection: | M63x0.75 thread (female) / M48x0.75 thread (male) |
Working distance: | 55 mm from the male M48x0.75 thread |
Eyepiece connection: | 1.25" via the adapter |
Tube material: | Aluminium |
Tube diameter: | 195 mm |
Tube length: | 450 mm |
Weight: | 5 kg incl. tube rings |
CNC tube rings with Losmandy style dovetail bar Hex allen keys for collimation
Astrophotographic results obtained with this telescope on Astrobin
Here you can find some astrophotographs made with this telescope model:
Link to AstrobinImaging test with the telescope
Our customer Torsten Müller has taken some photographs with this telescope, which are rather tests due to the weather situation at the time of taking the picture and the partly incomplete setting of the corrector distance, but they are so good that they clearly show the quality of the telescope:
Object: California Nebula (NGC 1499)Photographer: Torsten Müller
Telescope TS Hypergraph6 on Sky-Watcher EQ8
Filter: Optolong L-Pro
Camera: ZWO ASI2400MC Pro
Exposure time: 20x 4 min
Object: Triangulum Nebula (M 33)Photographer: Torsten Müller
Telescope TS Hypergraph6 on Sky-Watcher AZ-EQ5
Filter combination: Baader L-RGB CCD
Camera: ZWO ASI1600MM Pro
Exposure time: 24x 3 min
Object: IC 417 ("Spider", center left) and NGC 1931 ("Fly", center right)Other objects: Cluster on the right is M 36, below is M38, nebula on the left is IC 410.
Photographer: Torsten Müller
Telescope TS Hypergraph6 on Sky-Watcher EQ8
Filter: Optolong L-Pro
Camera: ZWO ASI2400MC Pro
Exposure time: 8x 5 min
Many Thanks to Torsten Müller for these lovely images!
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.
Manufacturer / Importeur: | Teleskop-Service Ransburg GmbH |
Street: | Von-Myra-Str. 8 |
ZIP / City: | 85599 Parsdorf |
Country: | Germany |
Telefon number: | +49 89 99228750 |
Email: | info@teleskop-service.de |
Website: | www.teleskop-service.de |