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galazie
member
Reged: 06/15/07
Posts: 13
Loc: Vietnam
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I received my GO 28x110 last Friday. I haven't got a chance to test it with DSO because I live in a city of at least 7mil. However it's doing fine with the Moon and Jupiter. Jupiter was perfectly round with the equatorial bands and polar regions color being seen.
This binos are very well built. It was shipped from US to me in Vietnam, so that means one more time crossing the Pacific. And I've seen how the courier here handled the shipment, just like a piece of firewood. However, the collimation is still OK, at least for my eyes.
The coating on the objectives also looks good. Looking at them I see just little reflection of my face. (however the coating can't compare to that on my Fujinon 10x50).
I mount the binos on the Series 5000 tripod and video head also bought from GO and found the mounting quite OK.
There's one thing of concern. I don't know what the issue is but the focus of these binos of mine is not so good. It cannot be focus perfectly on the right barrel. To the lower right of the FOV, less than 1 third of the FOV is not as sharp as the rest of it (stars are not as sharp and are more spiky). For now this is not really a problem to me, because I will use these binos mostly for galaxies not for stars so I guess that will not matter much.
Now I have one question: at this aperture and magnification, will the 28x110 reveal spiral structure of M33? Looking at the few sketches of M33
sketch1
sketch2
sketch3
and considering the aperture and magnification behind these sketches I have the feeling that it may be feasible for the 28x110. Anyway it's good to hear more on this.
And howabout spiral structure of M51? Any hope?
If it's possible for at least M33 then I will bring the binos to the darkest site I can find and take the pleasure...
Thank you.
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10x50 Fujinon
20x80 Oberwerk
28x110 GO
GO Series 5000 tripod and head
PST
See my astro blog: http://amateurastronomyvietnam.blogspot.com/
Edited by galazie (10/27/09 01:42 AM)
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Tony Flanders
Post Laureate
Reged: 05/18/06
Posts: 3468
Loc: Cambridge, MA, USA
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Quote:
Now I have one question: at this aperture and magnification, will the 28x110 reveal spiral structure of M33?
I haven't tried it myself, but I'd be surprised *not* to see spiral structure in M33 through 28x110 binoculars. Mind you, teasing structure out of galaxies is a skill that takes quite a while to develop. But M33 is probably an ideal choice to start with.
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Tony Flanders
First and foremost observing love: naked eye.
Second, binoculars.
Last but not least, telescopes.
And I sometimes dabble with cameras.
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BobinKy
Carpal Tunnel
Reged: 04/27/07
Posts: 1683
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Congratulations on the arrival of your Garrett Signature 28x110. I do not have any experience with this binocular, so I cannot advise about their ability to resolve dust lanes on galaxies. However, please take them to a dark site and give them a try. Most of what I have read about these very large binoculars is their use on open clusters. So a report from you with their use on galaxies will be most appreciated.
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Bob
38°N
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RichD
professor emeritus
Reged: 11/08/07
Posts: 564
Loc: Derbyshire, UK
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It all depends on the sky really. Under a mag 5 sky you may struggle, but get those things out to a dark site and I would imagine spiral structure would be obvious.
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Clear skies
Rich
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OpalescentNebula
super member
Reged: 01/11/07
Posts: 115
Loc: Calgary, Alberta, Observing so...
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With averted vision I can sometimes see M33 and the spiral arms. Other times I’m in the right spot but can only see a smudge. I have seen M51 a few times with NGC 5195 but I’ve never seen the spiral arms of M101. With Jupiter I see it slightly elongated with the equatorial bands sometimes and sometimes not. That’s with the 20x110’s.
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Yours truly,
Bill
"Good friends are like stars...you don't always see them, but you know that they are always there" - unknown
Binos : various binos, Zeiss 10x42 FL, Garrett Optical 20x110
telescope: WO Megrez 110 ED
Eyepieces: 13mm Ethos, 5mm Pentax XO, 28mm WO & 2x Powermate
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galazie
member
Reged: 06/15/07
Posts: 13
Loc: Vietnam
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Thank you all. This sounds promising. I'll go find a dark place. poor us amateur observers, this is more and more a luxury in our time.
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