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Question about my Oberwerk 25/40x100 Binoculars

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Expand view Topic review: Question about my Oberwerk 25/40x100 Binoculars

Re: Question about my Oberwerk 25/40x100 Binoculars

Post by Jne_K on Mon Jan 10, 2011 11:38 am

Now that's the ticket. Notice all the counterweights. You'll need them for that big a bino.

Re: Question about my Oberwerk 25/40x100 Binoculars

Post by IbeDavid on Mon Jan 10, 2011 11:32 am

Ok...ill check with Oberwerk. BY the way, heres a Parallelogram Mount for the Oberwerk Giant Binos..not cheap but very effective im sure. http://www.bigbinoculars.com/millennium.htm

Re: Question about my Oberwerk 25/40x100 Binoculars

Post by Jne_K on Mon Jan 10, 2011 11:12 am

I would visit with Oberwerk, directly, on this one. I'm sure they have gotten this question, before, and it might save you a lot of trial and error and wasted time.

Re: Question about my Oberwerk 25/40x100 Binoculars

Post by IbeDavid on Mon Jan 10, 2011 10:50 am

Jne_K wrote:Hi

If you are inserting a 90 degree diagonal in front of those eyepieces, you are probably running out of focus travel on the binocular. Binoculars are not made with much extra travel distance in the focuser and the extra focal length you add with a diagonal is not covered with the focuser. Telescopes typically are made with more focus travel, since the manufacturer knows that telescopes are often used with other accessories. You will most likely need to forget the 90 degree setup. Sorry

As for the mount, that is a tough one. The best option I have used is a large parallelogram mount designed to handle that kind of weight. I have used two of these, but they were custom made jobs and the owners would not sell them at any price. (I know, I tried.) I have yet to see any commercially available parallelogram mount on the market that can effectively handle that kind of weight, but you might do a google search and see what you can find. Nothing comes close to a good parallelogram mount when it comes to astronomy with binoculars, but you will need something built to handle that kind of load.

As for a photo mount, forget it. You can equal the stability of the wood tripod and mount that comes with the Oberwerk, but it will cost you dearly to better it and it still won't get you the views you want, overhead. If you are spending that kind of money, I would put it into finding a parallelogram mount.



Joanie, Thanks so much for answering. Ill look for a Paralellogram Mount. On the 90 degree setup...is there an extender that i could use to give me more focusing length ? Thanks.

Re: Question about my Oberwerk 25/40x100 Binoculars

Post by Jne_K on Mon Jan 10, 2011 10:42 am

Hi

If you are inserting a 90 degree diagonal in front of those eyepieces, you are probably running out of focus travel on the binocular. Binoculars are not made with much extra travel distance in the focuser and the extra focal length you add with a diagonal is not covered with the focuser. Telescopes typically are made with more focus travel, since the manufacturer knows that telescopes are often used with other accessories. You will most likely need to forget the 90 degree setup. Sorry

As for the mount, that is a tough one. The best option I have used is a large parallelogram mount designed to handle that kind of weight. I have used two of these, but they were custom made jobs and the owners would not sell them at any price. (I know, I tried.) I have yet to see any commercially available parallelogram mount on the market that can effectively handle that kind of weight, but you might do a google search and see what you can find. Nothing comes close to a good parallelogram mount when it comes to astronomy with binoculars, but you will need something built to handle that kind of load.

As for a photo mount, forget it. You can equal the stability of the wood tripod and mount that comes with the Oberwerk, but it will cost you dearly to better it and it still won't get you the views you want, overhead. If you are spending that kind of money, I would put it into finding a parallelogram mount.

Question about my Oberwerk 25/40x100 Binoculars

Post by IbeDavid on Sun Jan 09, 2011 6:33 pm

I like these and using the Binos with 45 degree angle eye pieces work fine , but I cant get any image using 90 degree eye pieces...and im wondering why ? Secondly, what is the cheapest Tripod that will support the weight of these Binos (26 lbs) that will allow me to see stars overhead ? Does anyone else have these Binos and are you happy with them ? Thanks much.

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