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I'm sure it must seem redundant to those that are experienced, but it WOULD be nice if manufacturers would put in even a simple "exploded drawing", so that a guy could see how some of this works.......................

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Hernando, funny how few people now about this barlow. I found out from you and like you mentioned, it's small size and performance is hard to beat. It's another reason I love my Hyperion zoom.

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That's right Bill, the Baader 2.25x barlow seems to be a well kept secret. Well, they're missing out on a good barlow option - it's sharp, compact, versatile, easy to use, and as you've said too, performance is hard to beat. Just a conjecture here - the usual notion of a barlow is that it's big with a hallow cavity to insert the EP snout into, but that's not the case with this small-profile barlow so just maybe, some might be thinking - nah, that's not a "proper" barlow. Furthermore, many are not aware that the barlow can actually be used not only with the zoom but with regular 1-1/4" EP's too by simply screwing it onto the EP's filter thread. Wait 'till they get to actually try one out.

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On other Hyperions, I found that a ring spanner like this was a great help

Ebay UK Lens Ring Spanner

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Usefull information!Thanks!
BTW i am the only one that has a twist-eyecup too-loose-problem that you can't practically observe with it,but i have to use the rubber eyecup that came with it?

Regards

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Hi, twist-eyecup too loose? In what way? Below are the twist-ups on both the Mark III (right) and the previous Hyperion zoom (left) version with helical eyecups fully extended. How different is the one on yours compared to these two which are both buttery smooth when going up or down?



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Hernando,
I own a TV 1.25 2X Barlow that I use with my Hyperion Zoom. Would the Baader 2.25X barlow be a better fit? It looks like they stick out from the focuser just about the same.
Tim

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Tim, yes, you can say that the Baader 2.25x barlow is a better fit, with a shorter overall profile compared to using the TV 1.25" 2x barlow as shown in the pics below:


Top - BH zoom w/ Baader 2.25x barlow screwed-on to the zoom's filter thread; Bottom - BH zoom w/Televue 1.25" 2x barlow

For scaling perspective and size comparison, below is a side-by-side of the Baader 2.25x barlow and Televue's 1.25" 3x barlow:



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I'm sure it must seem redundant to those that are experienced, but it WOULD be nice if manufacturers would put in even a simple "exploded drawing", so that a guy could see how some of this works.......................

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I'm sure it must seem redundant to those that are experienced, but it WOULD be nice if manufacturers would put in even a simple "exploded drawing", so that a guy could see how some of this works.......................

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Actually, there is a set of instructions on the AlpineAstro site. Here's a direct link.

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Thing is, that pdf link doesn't show how to convert the zoom from 2" to 1-1/4" or vice versa, or what to watch out for in doing the conversion. Like showing the connector & knurled ring in a simple exploded view as suggested by Jim should do the trick.

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Usefull information!Thanks!
BTW i am the only one that has a twist-eyecup too-loose-problem that you can't practically observe with it,but i have to use the rubber eyecup that came with it?

Regards

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Hi, twist-eyecup too loose? In what way? Below are the twist-ups on both the Mark III (right) and the previous Hyperion zoom (left) version with helical eyecups fully extended. How different is the one on yours compared to these two which are both buttery smooth when going up or down?



Best,

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I have the mark III.
My twist eyecup is loose enough,in a way that i cannot keep it in place,whenever i gently place my eye on it.I think the twist-eyecup-ring is a little bigger than supposed...I am using for several months the other rubber eyecup so i am used to it ,but thought asking if anyone has dealt with a similar problem.As i said you cant practically observe with this twist eyecup.

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I have the mark III.
My twist eyecup is loose enough,in a way that i cannot keep it in place,whenever i gently place my eye on it.I think the twist-eyecup-ring is a little bigger than supposed...I am using for several months the other rubber eyecup so i am used to it ,but thought asking if anyone has dealt with a similar problem.As i said you cant practically observe with this twist eyecup.

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With the 2.25 Barlow attached can the zoom be set to fit in both 1.25 and 2 inch focusers without any other change?

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You'll have to use a 2" adapter; mine's the Antares twist-lock adapter which works very well, no setscrews to fiddle with.



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