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Old 01-11-2013, 12:38 PM
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alpal
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Join Date: Jan 2012
Location: Melbourne
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8 times better than a Ritchey-Chretien ?

Hi Guys,
Hypergraph's are excellent telescopes but
have a look at this link:

http://www.astrooptik.com/Komplettge...ph_frame_e.htm

Quote:
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 process.

Could this be business puffery or true?
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