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Details about  Hubble Hyperbolic Newtonian Astrograph Optics, HNA14

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Hubble Hyperbolic Newtonian Astrograph Optics, HNA14

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US $1,650.00
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Hong Kong, Hong Kong
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Last updated on  Apr 27, 2014 20:18:12 PDT  View all revisions

Item specifics

New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ... Read moreabout the condition
Type: Mirrors, Prisms & Holders


Visit Store:   hubbleoptics

!!!!!!!!!!FRUAD ALERT: We have never asked, and will never ask any of our customers to pay our items to any third party.  You should always pay the item via paypal within eBay/Paypal system !!!!!!!!!!!! 

Please understand that the surface delivery is a great value, but it does take extra time, as long as 10 weeks (or even longer). You agree not to make the delivery time an issue with Paypal if the surface delivery is used.

Surface(US$) Air(US$)
US 86 150
US(Hawaii) 82 123
Australia 50 122
Belgium 46 131
Brazil 59 187
Canada 46 137
Denmark 42 116
France 59 140
Germany 54 136
Italy 50 124
Japan 52 82
Korea 36 61
Lithuania N/A 361
Mexico 46 158
Netherlands 47 118
New Zealand 66 142
Norway 57 149
Philippines 39 57
Poland 48 120
Romania 66 147
Russia N/A 346
Spain 44 129
Sweden 56 122
Switzerland 50 123
UK 59 144

For international bidders, please make sure to use the Shipping costs tool to estimate the shipping cost before you place bid! Please also provide your phone number during check out. Both UPS and USPS require the phone number for the international shipping.

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 (Plate Glass / Pyrex Glass) are priced at:

12.0" F/4.2+   $1200/$1850
14.0" F/4.2+   $1650/$2550
16.0" F/4.0+   $2200/$3200
18.0" F/3.8+   $3200/$4400
20.0" F/3.5+   $4200/$5500

*Some surcharge may be applied to the fast configuration.

The primary mirrors will be 0.95 Strehl wave front or better, 92% semi 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.

To ensure you have the most appropriate information regarding VAT rate in the EU, please read the following link:



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. ......

Tom Dobbins
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...

Dave Chadsey


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.

Kazuki Yamane



More eBay Feedback we have received (Over 500 great reviews!)

Positive feedback rating
Nice views with this mirror. Star tests are very good.

Positive feedback rating
One word: amazing. Amazing packaging, amazing service, amazing product. Amazing.

Positive feedback rating
alles bestens, sehr schnell geliefert

Positive feedback rating
Great! the mirror is wonderful. Thank you again!

Positive feedback rating
My Truss Dobson is ready tonight the first Light, Optic ist wonderfull

Positive feedback rating
fast service, good foucault images and rhonchigram, great deal!

Positive feedback rating
Great mirror, better than expected, wunderbar, AAA+++

Positive feedback rating
Verry good quatity.Great star test results. Will purchace from this seller again

Positive feedback rating
Thanks. Tripple packed! Even UPS can't break that..

Positive feedback rating
Bien reçu ! SUPER EMBALLAGE ! Merci, à bientôt

Positive feedback rating
Nice looking mirror. This is the second transction in a week. That says it all

Positive feedback rating
Installed and saw Jupiter beautifully! Packaging EXCELLENT. A++



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Seller assumes all responsibility for this listing.

Shipping and handling

Item location: Hong Kong, Hong Kong
Shipping to: Worldwide
Handling time
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Return policy

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Return policy details
Satisfaction Guaranteed: 30 days money back guaranteed. The mirror must be returned under the original condition in the original package. S&H is not refundable. The return shipping is at the buyer's cost and must be insured.

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