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Oberwerk Ultra 10.5 x 70 OR 15 x 70

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#1 XT10Guy

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Posted 16 June 2006 - 12:56 PM

If limited to these two options and could choose only one - which one would it be? I know EdZ conducted a poll back in '02 (or so) on "which bino do you use most?" and the 10x50 edged out 15x70, but those two options took most votes. If you could have one of these to compliment your scope (and no other binos, let's assume) which would you pick and why? :question:

Bob in SW Ohio

#2 Glassthrower

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Posted 16 June 2006 - 01:07 PM

If being used to compliment a nice scope, then I would go with the 10.5x70 for the larger field. It would make a nice glorified finder. The 15x70 is on the verge of being impractical for hand-holding, so that means setting up a second mount next to scope. I'd get the 10.5x70, put it on a thick padded neckstrap and use it handheld in conjunction with the scope.

But that's just me....clear dark skies to you...

MikeG

#3 btschumy

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Posted 16 June 2006 - 01:42 PM

A 10.5x70 is a quite different instrument than the 10x50 that ranked high in the poll. The 10.5x70 has a 6.7mm exit pupil that relatively few people will be able to take advantage of. First, not everyone's eye pupils will dilate that large so you are going to be losing light. Secondly, unless you have very dark skies for most of your observing (~6 limiting magnitude), the large exit pupil will give you a "washed out" look because of the bright sky background.

Between those two instruments I think you will be much happier with the 15x70. It should prove more versitile. Please realize that you will probably have to mount either one on a tripod.

#4 XT10Guy

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Posted 16 June 2006 - 01:50 PM

Thanks, Bill.

One other question then (am I going to get in trouble for changing it up within this topic?).

Oberwerk 15x70 Ultra OR Oberwerk 11x56

#5 btschumy

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Posted 16 June 2006 - 01:57 PM

I'll leave that to others more knowledgeable about those specific models.

#6 SaberScorpX

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Posted 16 June 2006 - 01:59 PM

Another vote for the Obie 15x70 Standard.
Alot lighter and more affordable. Plus comparable ER and FOV to the Ultra series 15s. (Though the Ultra's look like a real treat.)

As a personal side note, 10-12x usually leaves me wanting for either more mag or more field.
(Not knocking 10-12x binos at all. YMMV. Just an acquired Limbo.)



Stephen Saber
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#7 XT10Guy

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Posted 16 June 2006 - 02:18 PM

Bill,

I can't even hold my Oberwerk 11x56 steady enough for my enjoyment. I have an adapter, but I have yet to put it on the tripod. My 20x90s sit on the tripod and I hold the 11x56 out toward the front to reduce movement but it is still shaky. I want to get rid of my 11x56 and 20x90 and get the Ultra 15x70.

Bob, SW Ohio

#8 Rich V.

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Posted 16 June 2006 - 06:48 PM

For astronomy even 10x is shaky for me, though I have no trouble with 10x in daytime. A good mount makes binocular astronomy much more enjoyable.

At 10x the views are just beginning to get interesting. 15x at around 4° is a sweet spot for binocular astronomy, IMO. Many areas of the sky are framed nicely by that FOV. The 50% increase in magnification makes a very noticable improvement in my viewing enjoyment!

A 10.5x 70mm binocular would be less useful than 15x for many folks due to the large exit pupil and the effect of light pollution. If the 15x Ultra is close to the quality of a 16x70 Fuji, it sounds like a real winner!

Rich V

#9 Art Fritzson

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Posted 17 June 2006 - 08:36 AM

My most often used instrument is my 15x70 on a lightweight monopod that I keep in the trunk of my car. The 15x70 provides a dramatic step up from my 10x50s. Keeping it on a monopod makes it usable without being cumbersome. Mounted on a tripod, any pair of binos will show more than on a monopod. But the monopod approach is, I think, much closer to the handheld experience - it's a much more intimate connection with the sky when you can lean and twist your body to change your view.

Short answer and YMMV - I'd go for the 15x70's and get a monopod.

- Art

#10 XT10Guy

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Posted 17 June 2006 - 11:21 AM

Thanks for all your thoughts. I sold my 11x56 and 20x90 and got the Ultra 15x70s. I already had the great heavy duty tripod and 501 head, so I kept those for now. I look forward to adding a monopod over the next year. Thanks again!

Bob

#11 SaberScorpX

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Posted 17 June 2006 - 11:27 AM

Nice choice, Bob.
Looking forward to your impressions.



Stephen Saber
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#12 Bob W6PU

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Posted 17 June 2006 - 02:26 PM

I would pick the 15X70!

Since my 15X70 has more light gathering power and magnification, than my 8X50 finder scope, I use it to locate objects of interest for my 10" F/5 Treckerscope.

I also have a 11X80 Vixen, and find that my 15X70 Oberwerk does a better job for this purpose, and is lighter!

Hope that this helps you!

Bob in NM
10" Treckerscope
11X80 Vixen, 15X70 Oberwerk, 7X50 Hensoldt/Zeiss, 7X50 USN B&L, 8X30W Swarovski

#13 Swedpat

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Posted 17 June 2006 - 07:49 PM

Thanks for all your thoughts. I sold my 11x56 and 20x90 and got the Ultra 15x70s. I already had the great heavy duty tripod and 501 head, so I kept those for now. I look forward to adding a monopod over the next year. Thanks again!

Bob



Bob,

I have a 20x80 Triplet, which optically isn't equal to my 11x80. Are you satisfied with your decision?
As well the Ultra 15x70 and the 20x90 are not handholdable (I would like to claim), but the 11x56 is, thought it's may be barely.

Patric


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