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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*
*Some surcharge may be applied to the fast configuration.
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
You may have to pay Custom fees, import duties, and VAT to receive the package.
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What our customers are saying:
Last night I had “first light” with the 12.5” f/6 mirror that you recently supplied. It is truly a magnificent optic! Ronchi, knife-edge, and star tests were straight out of a textbook, and the image of Saturn was breathtaking. Despite the thin substrate, there is no hint of astigmatism. Frankly, when I purchased a Hubble Optics mirror on eBay, I was skeptical of the advertised wavefront quality. For the low price, it just seemed too good to be true. In the future, I will not hesitate to recommend your firm’s optics to friends and acquaintances. ......
Contributing Editor, Sky & Telescope magazine (quoted by permission)
I’ve tried buying fast 8” mirrors twice through A-mart and both were dogs – terribly undercorrected, probably spherical. This mirror is way different. Stars are near pinpoints and there is no tendency to astigmatism (at least nothing that didn’t come from my eyes). I went out tonight and looked at Jupiter as soon as it became visible. Even so, it is getting pretty low in the sky and the air was pretty wavy. As near as I could tell, in the moments of stillness the images were as good as any scope I own.
Star testing showed even images that were very nearly the same inside and outside of focus. Using my EZ tester (ronchi eyepiece) showed nice straight lines and no hint of TDE.
As far as I can tell this mirror is a winner and will suit my needs very well. Whether or not it actually meets the specs listed on the box I can’t tell without getting it tested. But its a lot better than the other Ebay mirrors and I like it. I wouldn’t be afraid to buy another Hubbleoptics mirror...
I just tentatively assembled my 10" F4.7 1/17 PV wavefront mirror in my observatory and watched Jupiter and the moon last night. Although the air condition was terrible due to middle of rainy season, optical performance was exactly as I expected! The surface of Jupiter was amazing. Contrast of color was deep and details were very sharp, image edge was knife cutting, even through hazy bad seeing. The surface of the moon had an extra contrast; very very sharp edged landmark was attractive enough to keep watching hours. A hair splitting and breath taking experience, which reminded me of previous mirrors. I need to further tune up optical performance of this scope such as replacing with smaller high precision secondary mirror etc. Will report further progress.
More eBay Feedback we have received (Over 500 great reviews!)
NEVER LOOK AT OR HANDLE THE MIRROR UNDER THE SUN! THE REFLECTION OF THE SUN LIGHT MAY CAUSE BURNING OR INSTANT AND IRREVERSIBLE DAMAGE TO YOUR EYE. EYE DAMAGE IS OFTEN PAINLESS, SO THERE IS NO WARNING UNTIL IT IS TOO LATE. CHILDERN SHOULD NOT BE ALLOWED TO HANDLE THE MIRROR.