85 replies to this topic

[terraclarke]

Post war inflation?

[Piggyback]

Hi Everyone,

 

I just added another classic Zeiss to my collection.  This one is a 1960s AS 63/840 semi-apo.  It has an air spaced doublet and combination draw tube and helical focuser.  Much lighter OTA than a Telementor.

 

The finder is from a Telementor II and is hence not original to the AS63.  Would anyone of you know what finder was available for the this style AS63?  The Telementor finder brackets are not correct.  And, the 1940s and 1950s AS (with brass focuser) had finders that screwed via stem onto the OTA.  I cannot find any information about what finder, if any, was configured for this style AS63.

I am curious to find out more about your finder solution. Could you be so kind as to provide a detail photo? Is that a 7.5x42 finder? I may want to try your idea on my own "Schulfernrohr". Any shortcomings? Thanks for your effort, idahoman.

Edited by Piggyback, 26 October 2016 - 12:10 PM.

[Piggyback]

Post war inflation?

I am not sure Terra, but it seems they were targeting schools and institutions. A VW Beetle was 5.050 Marks in 1950. It would be interesting to spend time in the Jena Archives to find out more. I hear they let you do your own in situ research. I recently wrote to Dr. Wimmer. Haven´t got a reply, yet.

[Kevin Barker]

I find it interesting to see two scopes from same batch and only 16 serials apart but obviously yours (JENA) was to be sold in western countries and mine for domestic sell.

Gary Beal (Cambridge NZ) had one of these wee scopes. His included an interesting mount which was not driven. I also got hold of an AS63/840 lens about 15 years back and Gary helped me make an ota similar to this scope. We used teflon plastic milled for the drawtube. The scope I had is now owned by another New Zealander who uses it for solar observation.

 

Now the performance of Gary's lens was excellent as one would expect.No discernible false colour in focus on most objects. It did not quite match a Telementor 2 I had at the time in terms of image brightness. I remember seeing more moons on saturn in the T2 one one occasion.

[idahoman]

Here are my three Zeiss telescopes:  AS, Telementor 1, and Telementor 2.

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[Astrojensen]

On page 23 a bracketed Monokularer Feldstecher 6x30 für Amateurfernrohr is offered for use as finderscope. I assume the ring was meant to fit between the extension tube and helical focuser. Anyone here seen a real AS 63/840mm with this funny looking contraption? When I think about it, this sure makes a lot of sense.

 

 

Broschüre Astronomische Amateurgeräte von 1959_05red.jpg

No, the monocular finderscope shown, is for use with the older version of the AS63/840, shown in the same catalogue, p.30, with the brass rack and pinion focuser. 

 

 

Also found this nice depiction of an early AS 63/840mm on page 30 of that catalog. Could this be the one they were showing at the Leipzig fair in 1949?

Anyone seen an early mount like this for real?

 

Broschüre Astronomische Amateurgeräte von 1959_09red.jpg

Yes, but it was on a different mount, the Zeiss 1, the predecessor of the later 1a, 1b and 1c mounts. A description of the AS63 on said mount can be seen on p. 31 of your catalogue, lower table. 

 

 

Clear skies!
Thomas, Denmark

Edited by Astrojensen, 31 October 2016 - 03:27 PM.

[Piggyback]

 

On page 23 a bracketed Monokularer Feldstecher 6x30 für Amateurfernrohr is offered for use as finderscope. I assume the ring was meant to fit between the extension tube and helical focuser. Anyone here seen a real AS 63/840mm with this funny looking contraption? When I think about it, this sure makes a lot of sense.

 

 

Broschüre Astronomische Amateurgeräte von 1959_05red.jpg

No, the monocular finderscope shown, is for use with the older version of the AS63/840, shown in the same catalogue, p.30, with the brass rack and pinion focuser. 

 

 

Also found this nice depiction of an early AS 63/840mm on page 30 of that catalog. Could this be the one they were showing at the Leipzig fair in 1949?

Anyone seen an early mount like this for real?

 

Broschüre Astronomische Amateurgeräte von 1959_09red.jpg

Yes, but it was on a different mount, the Zeiss 1, the predecessor of the later 1a, 1b and 1c mounts. A description of the AS63 on said mount can be seen on p. 31 of your catalogue, lower table. 

 

 

Clear skies!
Thomas, Denmark

 

Yes, but all that well-meant talk leaves me clueless. I may end up making an adapter to change my AS 80/1200mm finder for use on my AS 63/840mm tube.

 

 

Edited by Piggyback, 02 November 2016 - 12:08 AM.

[Fhuyu]

Here are my three Zeiss telescopes:  AS, Telementor 1, and Telementor 2.

Beautiful Zeiss family photo   , great equipments! 

 

 

 

 

 

On page 23 a bracketed Monokularer Feldstecher 6x30 für Amateurfernrohr is offered for use as finderscope. I assume the ring was meant to fit between the extension tube and helical focuser. Anyone here seen a real AS 63/840mm with this funny looking contraption? When I think about it, this sure makes a lot of sense.

 

 

Broschüre Astronomische Amateurgeräte von 1959_05red.jpg

No, the monocular finderscope shown, is for use with the older version of the AS63/840, shown in the same catalogue, p.30, with the brass rack and pinion focuser. 

 

 

Also found this nice depiction of an early AS 63/840mm on page 30 of that catalog. Could this be the one they were showing at the Leipzig fair in 1949?

Anyone seen an early mount like this for real?

 

Broschüre Astronomische Amateurgeräte von 1959_09red.jpg

Yes, but it was on a different mount, the Zeiss 1, the predecessor of the later 1a, 1b and 1c mounts. A description of the AS63 on said mount can be seen on p. 31 of your catalogue, lower table. 

 

 

Clear skies!
Thomas, Denmark

 

Yes, but all that well-healed talk leaves me clueless. I may end up building my own adapter to quick-change my AS 80/1200mm 7,5x42mm finder to my AS 63/840mm.

 

Zeiss AS 80mm auf 1200mm Barther Schulsternwarte_03.JPG

 

 

Good idea, if finally you end up building your own adapter to use the finder of your AS 80/1200mm, to your AS 63/840mm please tell us the result   

 

Best regards!

[asyx77]

Hi Janez:

 

Here is a post that tells the glass types in the AQ triplet lens:

http://www.astromart..._post_id=648536

PJ's post agrees with what I have read in one of the books about German lenses.  The book also lists an AP doublet semi apo lens.

 

Further down the thread is a post by Markus Ludes where he said he sold an AQ prototype.

 

Derek

Hi Derek,

 

I own an AP125/1200 it´s a Flourite Doublet with CaF2 and BaK2 glasses, the colour correction is (let me say) 99% like the APQ130. It will take time to finish the scope, the tube is not

made by Zeiss, if it is finished i will post pics.

 

Best

Ernst Christian

[Jim Curry]

Hi Derek,

 

I own an AP125/1200 it´s a Flourite Doublet with CaF2 and BaK2 glasses, the colour correction is (let me say) 99% like the APQ130. It will take time to finish the scope, the tube is not

made by Zeiss, if it is finished i will post pics.

 

Best

Ernst Christian

Hey Ernst

 

Did you ever finish this build?  Zeissoholics are interested :>)

 

Jim

[beanerds]

No worries. 

 

 

 

Clear skies!
Thomas, Denmark

Same here .

 

Beanerds.

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