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Let's talk about the Hubble Optics UL16

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#1 Ira

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Posted 29 October 2011 - 11:47 PM

The UL16, an ultralight 16" f4.5 compact Dob with an introductory price of $1995!? Heaviest component, the mirror box with mirror, weighs just 25 lbs. What's not to like? Or is this too good to be true? Found out about this scope in the vendors forum on Cloudy Nights.

http://hubbleoptics.com/UL16.html

/Ira

#2 Astrojensen

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Posted 30 October 2011 - 02:25 AM

I know I am extremely tempted... But I don't have the money! :bawling:

The only issue I can see with it straight away is the lack of baffling opposite the focuser. Otherwise, a great amount of thought and consideration seem to have gone into its construction. I guess it won't be long before someone jumps at it, given the low, low price.


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#3 Traveler

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Posted 30 October 2011 - 03:02 AM

Looks fine and the price is great. I don't see any dsc's?

#4 Ira

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Posted 30 October 2011 - 03:38 AM

I'm on the fence. Mostly a financial consideration. I just bought a moby expensive 5" APO refractor. Now this! :foreheadslap:

/Ira

#5 Traveler

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Posted 30 October 2011 - 04:29 AM

I saw that just the structure of a 14 inch is just 1.1K!
How do they do that?

#6 sixela

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Posted 30 October 2011 - 04:33 AM

The only issue I can see with it straight away is the lack of baffling opposite the focuser.


Like all these scopes, it simply needs a light shield and/or a shroud.

#7 Ira

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Posted 30 October 2011 - 04:35 AM

I saw that just the structure of a 14 inch is just 1.1K!
How do they do that?


So, that's why I'm wondering if the whole thing is too good to be true? Or maybe someone has finally figured out how to bring hi-tec mass produced engineering and manufacturing to the Dob world. After all, why should a little metal and glass cost an arm and a leg these days?

/Ira

#8 Ira

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Posted 30 October 2011 - 04:37 AM


The only issue I can see with it straight away is the lack of baffling opposite the focuser.


Like all these scopes, it simply needs a light shield and/or a shroud.


You can buy a shroud for $85, but it does not extend up to the eyepiece holder, which sits in front of the top connector ring

/Ira

#9 Traveler

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Posted 30 October 2011 - 04:45 AM

mmm, a little weekend engineering and you can fix that imo.

#10 nictorax

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Posted 30 October 2011 - 06:57 AM

It does seem interesting.

Here is a link to a previous thread talking a little bit about this structure (not necessarily the 16" structure).

regards,
Kevin

#11 SeattleScott

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Posted 30 October 2011 - 10:22 AM

Ok, but how good are the optics? Despite the unconventional hole in the mirror, aren't these still machine-ground mass produced mirrors? A 16" Lightbridge may have just as good of optics for slightly less dough. Of course it may be well worth the small price difference during this promotion to get the lighter weight UL16. It does seem like a great value at the introductory price, but a lot of people in the 16" Dob market are looking for a premium mirror. Once the introductory pricing ends and it goes up to $3k, will Hubble be competing against Meade or against Obsession?

#12 nictorax

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Posted 30 October 2011 - 10:53 AM

I agree with you regarding the optics. There seem to be diverging reports. Although, lately reports have been rather positive.

I just find the structure itself interesting. Someone who already has a classic dobsonian, and wishes to go towards an UL, might be interested in buying just the structure and then use his or her mirror, secondary etc...

#13 thinairart

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Posted 30 October 2011 - 12:26 PM

Once the introductory pricing ends and it goes up to $3k, will Hubble be competing against Meade or against Obsession?


If anything the price will go down, not up. HO's mirrors for instance are 3x as expensive on their website, compared to what HO sells them for through their eBay store. I can't imagine as a discount vendor they would ever price thier products to compete with a premium vendor like Obsession. As for the optics, I have a 14" and have been very happy with the mirror.

#14 obsessionstar

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Posted 30 October 2011 - 12:32 PM

Those scopes have been offered for a year and not one CN member has had the guts to order one yet?

#15 JimMo

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Posted 30 October 2011 - 01:16 PM

Despite the unconventional hole in the mirror, aren't these still machine-ground mass produced mirrors?


Holy collimation, Batman, how would line up the mirrors if there's no center spot?

#16 obsessionstar

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Posted 30 October 2011 - 01:37 PM

Holographic laser

#17 johnnyha

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Posted 30 October 2011 - 03:48 PM

Cork plug? :grin:

#18 Pinbout

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Posted 30 October 2011 - 05:56 PM

The UL16, an ultralight 16" f4.5 compact Dob with an introductory price of $1995!? Heaviest component, the mirror box with mirror, weighs just 25 lbs. What's not to like? Or is this too good to be true? Found out about this scope in the vendors forum on Cloudy Nights.

http://hubbleoptics.com/UL16.html

/Ira



I don't know about this scope but their other ultra lights, the ones with the ugly square frame before the mirror cell, I played with at NEAF 10 [they made them for Orion] and thought it wasn't stiff enough. It definitely wasn't buttery smooth. Very disappointed.

#19 94bamf

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Posted 30 October 2011 - 08:45 PM

It doesn't appear the mirrors for sale on their Ebay store have holes in the middle. I am thinking their Newtonian mirrors don't have holes in the middle, maybe some of the other types do?

Ken

#20 cheapersleeper

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Posted 30 October 2011 - 09:31 PM

No idea where the hole thing is coming from...

#21 Pinbout

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Posted 30 October 2011 - 09:31 PM

Those scopes have been offered for a year and not one CN member has had the guts to order one yet?


If they don't have salesreps at star parties showing them off why would anyone spend that much money without seeing one in action. Not even showing up to NEAF.

#22 Ira

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Posted 31 October 2011 - 01:29 AM

The mirrors on their web sites have no hole in the middle. Just a green dot. They do make mirrors for maks and cats. Maybe that's where the "hole" idea comes from. So far no great insights on this scope. :(

/Ira

#23 sopticals

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Posted 31 October 2011 - 04:19 PM

I have over the last 2 years bought 3 mirrors from HO and none have holes or green dots. A center mark would be useful.

I would like to comment on the quality of the current HO mirror I am using. HO claims the following specs: Strehl 0.997, 1/25.4 PV. 1/111 RMS. The mirror is a 14" sandwich.Even if the RMS and wave front specs are even half as good as claimed this would be an excellent mirror.I am very pleased with its performance.Image stays firm at all mags.In my view great value for money spent.

#24 Wozzel

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Posted 31 October 2011 - 06:33 PM

Someone buy and make report the scope. Too long someone want.

#25 roverich

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Posted 31 October 2011 - 07:22 PM

I was thinking about buying one of the UL16 scopes ..I was reading there web page and found out there located in northern Va. (falls church) area , so i would want to go and check one out before i spent that kind of cash ..3000 is a lot of money for me ...But after further investigation i see there stuff comes out of Hong Kong ..Not that that is a bad thing ...If they are indeed located in No.Va. i will check them out for sure ...






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