Hypergraph

Hypergraph

13.5" f/9 Hypergraph with
a carbon truss-tube

About the Hypergraph

Conventional Cassegrain-Systems (parabolic main mirror, hyperbolic secondary) can be tuned with a 2-lens corrector for the usage of medium format photography. The performance can be increased even further if the hyperbolic shapes of the mirrors are changed and reoptimized together with a 2-lens corrector. We developed such a system and called it Hypergraph. The corrector is placed near the bore of the main mirror and the system shows perfect performance on a 4" large field that is nearly diffraction limited.

Optical performance without equal
The spot size on the plane field of the Hypergraph is more than 20 times smaller compared to a conventional Schmidt-Cassegrain, about 10 times smaller compared to a classical Cassegrain and about 8 times smaller compared to a Ritchey-Chretien telescope. Tight specifications guarantee, that the theoretical performance is also reached in the manufacturing prozess.

A view in the off-axis guider working from 1" to 2" center distance will convince you about the off-axis performance of the Hypergraph. You will be able to see a lot of details on planets even on the edge of the field. It is hardly possible to see a difference between the center and the edge of the field.

Of course the large field is no disadvantage if you only plan to use the telescope for CCD or viewing. You can check that with the CCD-images that are presented on our astrophoto-pages. The visual performance is also marvelous, making the Hypergraph a perfect all-round telescope.

400mm f/8 Hyper-
graph with full-tube

M 13, CCD

M27, CCD

Lagoon, 6x7

Omeganebula, 6x7

Moon, CCD

Jupiter, CCD

You can check the off-axis performance here.

Click on the corner of the field or in the center to view the full field.

Even on Technical Pan (TP) there is no difference in spot size between center and edge.

M45, 13.4" f/9 Hypergraph 6x7 Michael Breite

16" f/8 Hypergraph with carbon truss-tube

Full Tube or Truss Tube ?

We offer the Hypergraph either as truss tube with carbon tubes or with a full-size tube. We recommend the truss-tube version. The carbon tubes have a near-zero thermal expansion coefficient and the system therefore is very stable in focus. Also the stiffness is higher compared with the full-tube version. The truss-tube-Hypergraphs are delivered with a shade that you can use if you have problems with dew or light-pollution.