12 replies to this topic

[pbealo]

Just returned home with a new-to-me Zeiss Jena Telementor. This is my first Zeiss, and I have questions. See images below.

 

1) I see the two screws near the top of the OTA take the lens cell off, so I can see which lens is in it. OK: Removal looks easy, but what's the procedure to reinstall it and get the holes in the cell to line up with the screws??

 

2) Is the tripod "correct" for this model? I suspect it is for an older Zeiss, but am unsure. Note the GEM does not go down all the way on the tripod "pillar".

 

3) It has the correct helical focuser I believe, with a 1.25" adapter. Is the adapter original? Also: what is the "spare" 1.25" adapter shown separately?? It appears to come apart, but I can't do so by hand. And is the .965" adapter so long as to allow focus to be obtained with a diagonal?? It just seems very long.

 

Sorry for the dumb questions, I just don't know these Zeiss scopes...

 

Peter B.

 

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[pbealo]

More images...

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[RichardHennig]

Congratulations on the nice looking Telementor 1. I have a Telementor 2 and a Telemator and have seen the Telementor 1 before.

Everything on your Telementor 1 looks original except that the Telementor did not come with a 1.25” adapter.

The mount should fit completely on the tripod. I wonder if the locking screw is stopping the mount from sliding lower on the “pillar”.

The 0.965” adapter looks like it is the aluminum version, which is well built. It should come apart into the adapter and extension tube. You need the extension tube for straight-through viewing or solar projection with a Huygens eyepiece. When using the diagonal prism or turret, you do not need the extension tube.

The lens is mounted differently on the Telementor 1 and later models, so I cannot help with how to reinstall it.

Enjoy your nice classic scope.

[pbealo]

Thanks for the info Richard!

 

The .965 adapter is aluminum.

 

Someone privately stated that he believes the tripod is from the older AS63 telescope. But IDK...

 

Who knows, someday it may be clear so I can try it out!

 

Peter

[RichardHennig]

Peter, here is an images of my Telementor 2, mount, and tripod. The tripod looks the same as the one you have. Have you tried removing the lockin screw and looked that there is nothing inside the hollow bottom part of the mount that attaches to the tripod that could prevent it from sliding all the way down on the tripod adapter?

 

I once had some trouble getting the T-mount to slide all the way down on the tripod adapter. I used a paper towel and some machining grease to clean out and lubricate the adapter and it worked. You could also measure the length of the tripod adapter shaft and compare it with the depth of them mount opening.

 

I thought that the older mount of the AS 63/840 used the same Berlebach tripod and adapter as the later T-mount for the Telementor but might be wrong. Here are some pictures for the AS 63/840 and it looks quite similar:

https://forum.astron...e.355860/page-2

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[starman876]

good luck getting the lens cell out.  Sometimes they do not want to slide out. That is because someone messed with the lens cell screws and now there are burs digging into the tube.  You might have to use a long stick and tap it out of the tube.  Be careful not to bugger up the lens.  To get it back in you need to slide it back in the tube until the screw holes line back up.  Not an easy task.  good luck

[pbealo]

Peter, here is an images of my Telementor 2, mount, and tripod. The tripod looks the same as the one you have. Have you tried removing the lockin screw and looked that there is nothing inside the hollow bottom part of the mount that attaches to the tripod that could prevent it from sliding all the way down on the tripod adapter?

 

I once had some trouble getting the T-mount to slide all the way down on the tripod adapter. I used a paper towel and some machining grease to clean out and lubricate the adapter and it worked. You could also measure the length of the tripod adapter shaft and compare it with the depth of them mount opening.

 

I thought that the older mount of the AS 63/840 used the same Berlebach tripod and adapter as the later T-mount for the Telementor but might be wrong. Here are some pictures for the AS 63/840 and it looks quite similar:

https://forum.astron...e.355860/page-2

I made the measurement of hole depth vs tripod nipple. The hole depth is slightly deeper than necessary. But when carefully examined, there is some obstruction near the bottom of the hole, beyond the screw. I wish I had an endoscope! But cell camera shows it. The obstruction is on the same side of hole as the set screw.
 

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[pbealo]

good luck getting the lens cell out.  Sometimes they do not want to slide out. That is because someone messed with the lens cell screws and now there are burs digging into the tube.  You might have to use a long stick and tap it out of the tube.  Be careful not to bugger up the lens.  To get it back in you need to slide it back in the tube until the screw holes line back up.  Not an easy task.  good luck

Maybe we'll skip this!

[ccwemyss]

Looks like there is an anti-scuff collar that is meant to keep the lock screw from marring the shaft. But someone screwed it all the way in while the shaft wasn't there to stop it, so now it is bent inward. 

 

Probably need to make a tool to drive it back out, so the shaft can clear it. 

 

Chip W. 

[Terra Nova]

Congratulations Peter. They are great 60ish scopes; built like a tank. I had both the T1 and T2 models.

[starman876]

Maybe we'll skip this!

if the lens cell screws are ok it slips right out. Most likely will say 62mm/640mm.  if I remember correctly

[Astrojensen]

if the lens cell screws are ok it slips right out. Most likely will say 62mm/640mm.  if I remember correctly

C63/840mm

 

 

Clear skies!

Thomas, Denmark

[starman876]

C63/840mm

 

 

Clear skies!

Thomas, Denmark

thanks for correcting me