16" F/4.5 Lightweight Sandwich Parabolic Telescope Mirror For Sale

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16" F/4.5 Lightweight Sandwich Parabolic Telescope Mirror :
$800
There is one ~1cm x ~1cm chip on the back edge of the
mirror, which has absolutely no impact on its optical performance.
Please understand that the surface delivery is a great value, but it does take extra time, maybe even longer than 10 weeks. You agree not to make the delivery time an issue, and not open a case with or Paypal if you want to use the surface delivery. Please wait for our invoice for the exact shipping cost.
Surface(US$)
Air(US$)
US
99
185
US(Hawaii)
99
157
Australia
NA
192
Belgium
51
164
Brazil
NA
NA
Canada
54
173
Denmark
48
145
France
65
170
Germany
54
165
Italy
54
150
Japan
55
97
Korea
41
74
Lithuania
N/A
440
Mexico
51
200
Netherleands
53
148
New Zealand
NA
NA
Norway
57
153
Philippines
43
68
Poland
58
150
Romania
78
185
Russia
N/A
364
Spain
50
162
Sweden
63
151
Switzerland
57
154
UK
65
174
This is a state of art, professional fabricated, ~F/4.5, revolutionary lightweight sandwich primary parabolic telescope mirror made of the top quality precision annealed plate glass. The mirror structure has been optimized using the advanced Finite Element Analysis Modeling. It has very short thermal equilibrium time even without fan. The overall thickness of the mirror is about 1.75". Optical Aperture (Diameter): 16.00" Coating: Standard Al coating with SiO protection, 88% reflectivity. The special upgrade offer for the 92% Semi-enhacned coating: $90
If you would like to have this upgrade, please inform us right after winning the offer.Radius of Curvature (ROC): 142.97" Focal Length: 71.49" PV (wavefront): 1/10.2 RMS: 1/40.3Strehl Ratio: 0.976S/N: 08-01-16-06K
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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 , 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 (quotedby 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 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 responsewe have received (Over 700 great reviews!)
Nice views with this mirror. Star tests are very good.
One word: amazing. Amazing packaging, amazing service, amazing product. Amazing.
alles bestens, sehr schnell geliefert
Great! the mirror is wonderful. Thank you again!
My Truss Dobson is ready tonight the first Light, Optic ist wonderfull
fast service, good foucault images and rhonchigram, great deal!
Great mirror, better than expected, wunderbar, AAA+++
Verry good quatity.Great star test results. Will purchace from this seller again
Thanks. Tripple packed! Even UPS can't break that..
Bien reçu ! SUPER EMBALLAGE ! Merci, à bientôt
Nice looking mirror. This is the second transction in a week. That says it all
Installed and saw Jupiter beautifully! Packaging EXCELLENT. A++
WARNING!!!:
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.