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Restoring and using German 10x80 Flakfernrohr bino

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#1 asaint

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Posted 04 February 2004 - 02:46 PM

Restoring and using German 10x80 Flakfernrohr binos

#2 EdZ

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Posted 04 February 2004 - 03:08 PM

I aplaude the author, not only on his worthwhile efforts to compile and publish this history, and record of his undertaking, but also on his brave foray into the daunting task undertaken that lead to this beautiful gem.

Thanks,

edz

#3 Jeff Morgan

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Posted 04 February 2004 - 04:34 PM

Great article, tempted to try this myself. Amazing to me that no current manufacturer makes anything like this. A 90 degree would be even better!

#4 Guest_**DONOTDELETE**_*

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Posted 08 February 2004 - 01:58 PM

A terrific and amazing article!! I love it.

Joe Donahue

#5 gatorengineer

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Posted 11 April 2005 - 09:06 AM

I am getting ready to undertake a flak glass restoration project, and will definitely use your article as a guide.

I have found an optical coating service that will coat optics, in small batches for a ""reasonable"" fee. I am considering having the objectives and prisms coated with broad band coating. I was wondering what the group thought of this idea? This would improve the light transmission at 4 surfaces. I realize the eyepieces would still loose a fair bit of light.

Second question is that the service was concerned about coating cemented objectives of 80mm diameter, and suggested that the two elements be coated separately and glued together due to stress of differential thermal expansion, between flint and crown. Anyone know if this is a valid concern?

Thanks for input and comments.

-Mark-

If this succeeds I will due my U-boat 8 x 60's RA's next.....

#6 RRaubach

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Posted 20 April 2005 - 02:57 PM

This is a really useful article. I happen to own several pair of these in addition to a pair modified for me by Kevin Kuhne as 18x80 glasses. Kevin professionally cleaned all of the optics, and had them mag-fluoride coated. The astro performance is astounding, especially on some of the brighter Messier objects.

There were 6 companies in Germany/Austria/Poland that made these binoculars. They were designed by Emil Busch, A.G., but such companies as Leitz, Schneider, and Fuess also made them. I happen to collect them by manufacturer as designated by the 3 letter code on the R. prism housing. There were also some 10x80 Flakfernrohr binos manufactured by Zeiss that were 90 degree viewing angle glasses. Perhaps rarer than the binoculars themselves were the alt-az mounts.

Rodger

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TMB 175
Takahashi TOA 130
Meade LXD-75 SN-10AT
Schneider 18x80 Flakfernrohr (Kevin Kuhne)
Leitz 10x80 Flakfernrohr
Schneider 10x80 Flakfernrohr
Busch 10x80 Flakfernrohr
Schneider 10x80 Flakfernrohr (with commercial ,non-military markings)
Busch 10x80 Flakfernrohr with original orange Busch coatings.

#7 farshot

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Posted 05 January 2006 - 10:46 PM

im a new member, possibly someone can inform me as to how i can obtain a copy of this article on the 10x80s. thanks farshot.

#8 spaceydee

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Posted 05 January 2006 - 10:58 PM

Welcome to Cloudy Nights!

Try this link: Restoring and using German 10x80 Flakfernrohr binoculars

#9 farshot

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Posted 05 January 2006 - 11:32 PM

re. spaceydee. thanks for your reply, but i meant how can i obtain a printed copy?

#10 farshot

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Posted 20 January 2006 - 08:54 PM

well i found someone who showed me how to make a copy of this article. i feel a little guilty, as i feel it has more value than that. i have been told by a close friend, whom i consider very knowlegable on large millitary binoculars, not to mix any glass. mark it, and put it back where you found it.

#11 farshot

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Posted 20 January 2006 - 09:18 PM

you have a gold mine of information about 75 miles west in the town of lititz, just no. of lancaster. lowell amond. very knowlegable, and a close friend of kevin kuhne. go slowly, he is a quiet, humble person, with a large responsibility.

#12 Glassthrower

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Posted 21 January 2006 - 09:59 AM

The article link in this thread is 404. And I cannot find a link to the story on the main page.

What gives? Am I missing something?

MikeG

#13 jrcrilly

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Posted 21 January 2006 - 10:14 AM

The article link in this thread is 404. And I cannot find a link to the story on the main page.

What gives? Am I missing something?

MikeG


http://www.cloudynig...=196&pr=2x48x61

#14 spaceydee

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Posted 21 January 2006 - 12:00 PM

Thanks John! :)


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