a 15" Obsession Ultra Compact

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bornfree
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a 15" Obsession Ultra Compact

Post by bornfree »

The 15" UC Obsession

this is probably a very nice dob not too big and so simple to setup. have to get a chance to peek into an obession at least once... [smilie=admire2.gif]
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Clifford60
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Re: a 15" Obsession Ultra Compact

Post by Clifford60 »

The original setup in Sg will see not stars but street and stray lights.
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bornfree
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Re: a 15" Obsession Ultra Compact

Post by bornfree »

Clifford60 wrote:The original setup in Sg will see not stars but street and stray lights.
WOOT!! that's sad..
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Gary
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Re: a 15" Obsession Ultra Compact

Post by Gary »

Business opportunity for local retailers to sell some super premium blacker-than-black shroud. :)
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VinSnr
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Re: a 15" Obsession Ultra Compact

Post by VinSnr »

bornfree wrote:The 15" UC Obsession

this is probably a very nice dob not too big and so simple to setup. have to get a chance to peek into an obession at least once... [smilie=admire2.gif]
My biggest problem with the UC design (and the Hubble Optics Compact) is that the secondary mirror is located outside of the main assembly. This is going to make it very prone to dew in our climate. And with our very enthusiastic bunch of amateurs, public, kids, etc..someone is going to touch that mirror.
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antares2063
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Re: a 15" Obsession Ultra Compact

Post by antares2063 »

Tachyon still around/active? He owns a 15" Obsession, not UC but still amazing :P
I miss the place where stars shine bright, to gaze upwards in awe of the sight
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Clifford60
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Re: a 15" Obsession Ultra Compact

Post by Clifford60 »

antares2063 wrote:Tachyon still around/active? He owns a 15" Obsession, not UC but still amazing :P
Tachyon's Obsession has a big different, it uses Zambuto mirror. Ya, long time didn't hear from him.
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cloud_cover
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Re: a 15" Obsession Ultra Compact

Post by cloud_cover »

VinSnr wrote:
bornfree wrote:The 15" UC Obsession

this is probably a very nice dob not too big and so simple to setup. have to get a chance to peek into an obession at least once... [smilie=admire2.gif]
My biggest problem with the UC design (and the Hubble Optics Compact) is that the secondary mirror is located outside of the main assembly. This is going to make it very prone to dew in our climate. And with our very enthusiastic bunch of amateurs, public, kids, etc..someone is going to touch that mirror.
Thankfully with a 16" f/4.5, that secondary is out of reach for most kids :)
There are a few 15" class telescopes in Singapore and at least one 18" that I know about. These instruments really perform their best in darker skies and on average I think that at least one of these medium sized Dobs go up north during the montly astro trips.
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Gary
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Re: a 15" Obsession Ultra Compact

Post by Gary »

This thread is not complete without the following video poisoning. :)

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"The importance of a telescope is not how big it is, how well made it is.
It is how many people, less fortunate than you, got to look through it."
-- John Dobson.
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Mariner
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Re: a 15" Obsession Ultra Compact

Post by Mariner »

I may be getting a Hubble UL to finish off the Armada. But not in the near future though :mrgreen:
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