Hubble Hyperbolic Newtonian Astrograph Optics:
Hubble Optics announced the introduction of its breakthrough Hyperbolic Newtonian
Astrograph (HNA) optics for the wide-field visual observation and astrophotography.
It has been a great honor for Hubble Optics to work with the Alt-Az Telescope Initiative led
by Dr. Russell M. Genet and now we are proud to announce the introduction of the HNA
as the result of this collaboration. In particular, we are grateful to Dave Rowe for his
excellent HNA design.
The combination of a lightweight sandwich hyperbolic primary mirror and a matching
custom corrector provides excellent wide-field performance for both visual observation
and astrophotography, with numerous advantages over existing solutions:
Superb on-axis image quality, with a Strehl ratio greater than 0.99.
Much better overall performance than a parabolic mirror with a Ross corrector.
Meets the polychromatic performance of a parabolic mirror with a Wynne corrector, with
much fewer problems from ghosting, baffling, and reflections.
The corrector takes up less space, and has sufficient back focus of 130mm for easy
insertion of off-axis guiding hardware and filters.
Excellent optical performance for both wide field visual observation and astrograph at an
unprecedented price/performance ratio.
The HNA corrector will be initially available in 3.5-inch versions with a Hubble Optics
lightweight-sandwich primary mirror, 14-inch, 16-inch, 18-inch and 20-inch. The delivery
time is about 2 months. The complete optical set includes a lightweight-sandwich
hyperbolic primary mirror, a high-quality secondary mirror, and a matching custom
corrector assembly.
The mirror will be shipped to you directly from Hong Kong.
The Hubble Optics Sandwich Hyperbolic Primary Mirrors are priced at:
12.0" F/4.3 - F/5.5 $1100*
14.0" F/4.0 - F/5.5 $1500*
16.0" F/4.0 - F/5.0 $2000*
18.0" F/4.0 - F/4.5 $2900*
20.0" F/3.5 - F/4.0 $4000*
The primary mirrors will be 0.95 Strehl wave front or better, 96-98% enhanced coated.
The HNA matching 2-element corrector optics with 99.5% broadband AR coating is
priced at:
3.5" corrector optics (79mm in diameter): $300
3.5" complete corrector assembly: $500
It will provide a 40mm diameter fully corrected flat field.
Hubble Optics announced the introduction of its breakthrough Hyperbolic Newtonian
Astrograph (HNA) optics for the wide-field visual observation and astrophotography.
It has been a great honor for Hubble Optics to work with the Alt-Az Telescope Initiative led
by Dr. Russell M. Genet and now we are proud to announce the introduction of the HNA
as the result of this collaboration. In particular, we are grateful to Dave Rowe for his
excellent HNA design.
The combination of a lightweight sandwich hyperbolic primary mirror and a matching
custom corrector provides excellent wide-field performance for both visual observation
and astrophotography, with numerous advantages over existing solutions:
Superb on-axis image quality, with a Strehl ratio greater than 0.99.
Much better overall performance than a parabolic mirror with a Ross corrector.
Meets the polychromatic performance of a parabolic mirror with a Wynne corrector, with
much fewer problems from ghosting, baffling, and reflections.
The corrector takes up less space, and has sufficient back focus of 130mm for easy
insertion of off-axis guiding hardware and filters.
Excellent optical performance for both wide field visual observation and astrograph at an
unprecedented price/performance ratio.
The HNA corrector will be initially available in 3.5-inch versions with a Hubble Optics
lightweight-sandwich primary mirror, 14-inch, 16-inch, 18-inch and 20-inch. The delivery
time is about 2 months. The complete optical set includes a lightweight-sandwich
hyperbolic primary mirror, a high-quality secondary mirror, and a matching custom
corrector assembly.
The mirror will be shipped to you directly from Hong Kong.
The Hubble Optics Sandwich Hyperbolic Primary Mirrors are priced at:
12.0" F/4.3 - F/5.5 $1100*
14.0" F/4.0 - F/5.5 $1500*
16.0" F/4.0 - F/5.0 $2000*
18.0" F/4.0 - F/4.5 $2900*
20.0" F/3.5 - F/4.0 $4000*
The primary mirrors will be 0.95 Strehl wave front or better, 96-98% enhanced coated.
The HNA matching 2-element corrector optics with 99.5% broadband AR coating is
priced at:
3.5" corrector optics (79mm in diameter): $300
3.5" complete corrector assembly: $500
It will provide a 40mm diameter fully corrected flat field.
| A: The back focus,129.9mm B: The thickness of the last lens, 7.0mm C: The space between lenses, 8.0mm D: The thickness of the first lens, 5.0mm The diameter of the corrector lens: 79.0mm |
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