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Help w/ older Vixen ED scope rear fittings

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11 replies to this topic

#1 Littlegreenman

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Posted 21 May 2020 - 06:03 PM

I have made by Vixen Orion branded 102 ED scope. It looks the same size as the f/6.5 Vixen sold in the late 1990's early 2000.

The metal draw tube is 62mm external diameter. On it is a black metal ring that accepts a male 43mm thread. Or is it a 42mm thread?

The black metal ring in on really tight. Does anyone know if it is removable and is just stuck, or not removable?

 

If not, how do I put eyepieces on this? I read one reference on A-mart that Vixen made a 43 mm to 1.25" eyepiece adapter, but cannot find one. Currently Vixen sells a 42mm to 1.25" accessory, but it appears it has a female 42mm thread.

 

Thanks.

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Edited by Littlegreenman, 21 May 2020 - 06:04 PM.

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#2 Blueox4

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Posted 21 May 2020 - 06:13 PM

If it’s like my two FL70’s you could use this adapter to open the door to anything T2. There’s a thread too. I’ll find it and post with more info but it’s adapter is what you could use.

 

https://agenaastro.c...22-1508037.html


Edited by Blueox4, 21 May 2020 - 06:13 PM.


#3 GOLGO13

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Posted 21 May 2020 - 06:18 PM

You're adapter looks different than mine. And mine does come off (for being able to screw other attachments in). Now, mine came off a 130mm Vixen SS refractor.

 

It appears yours is setup for a camera or something.

 

Mine is not in use so let me know. Mine seemed to measure 6 centimetres across (the drawtube that is...not the black part).



#4 GOLGO13

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Posted 21 May 2020 - 06:22 PM

vixen focuser


#5 GOLGO13

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Posted 21 May 2020 - 06:24 PM

Personally, I think you should try to screw that one off and see if your drawtube is 6 centimeters acrossish. You'd want to use a part like I have for a 2 inch focuser.



#6 GOLGO13

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Posted 21 May 2020 - 06:36 PM

This is what it looks like threaded on:

 

vixen focuser2


#7 Blueox4

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Posted 21 May 2020 - 06:47 PM

https://www.cloudyni...e/#entry9636879



#8 Littlegreenman

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Posted 21 May 2020 - 06:57 PM

(I really need to get a better caliper.) The outside diameter of my drawtube in 62 or 65mm, depending on which measurement. And my caliper doesn't really fit.

Note: I will be gone from computers for several hours, but get back to you.

SL



#9 GOLGO13

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Posted 21 May 2020 - 06:57 PM

It would be very interesting if he could unscrew it to see if he has the double sided deal.



#10 GOLGO13

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Posted 21 May 2020 - 07:00 PM

See post #2 from Blueox4's link. It looks like you may just have to unscrew it and turn it around to use with a diagonal. You'd probably have to get a set screw replacement, but easy at a department store.



#11 Simon B

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Posted 21 May 2020 - 07:24 PM

The black metal ring is an M60 x 0.75 to M43 x 0.75 adapter - the drawtube itself has female M60 x 0.75 threads

 

The best way would be to just replace the black metal ring with a Vixen eyepiece adapter; Vixen US have a set-screw version and a compression ring version:

 

https://www.vixenopt...-SX-p/37293.htm

 

https://www.vixenopt...pter-p/5971.htm

 

Or Baader makes a clicklock:

 

https://agenaastro.c...ad-2956260.html


Edited by Simon B, 21 May 2020 - 07:26 PM.

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#12 Littlegreenman

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Posted 21 May 2020 - 08:16 PM

Update:

I remembered I had a plumbers "rubber strap" wrench and was able to remove the black end ring. So now I have another 60mm Vixen drawtube with a female 60mm thread.

 

I'm a bit embarrassed. But I was of afraid of damaging something.   Especially when my first thought involved a pair of channel lock pliers. shameonyou.gif

 

Sorry to lead people astray. Thank you for all the advice, some of which I'm thinking about.

 

I bought this scope recently through a Goodwill auction. It came with a straight through set up and a 1.8x extender, so it was likely used and set up of for photography.

The ring I have is not reversible; no threads the opposite side.

I do have another Vixen refractor, 114mm ED SS f/5.4, and I just bought a Baader Click Lock for Vixen for that and now this scope.

 

For those who sent me a PM I will get back to you.


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