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Wrong adapter?

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#1 alberto2000

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Posted 02 July 2020 - 10:52 AM

I have ordered this: https://shop.proastr...-2-und-s52.html

 

I wanted to mount my 2" focal reducer to it, so it is closer to the camera sensor. But the reducer does not fit ... is it the wrong adapter?

 

The reducer is this one: https://www.teleskop...tergewinde.html

 

Can you help?



#2 Jond105

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Posted 02 July 2020 - 11:34 AM

Moved to B&II for better fit



#3 sg6

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Posted 02 July 2020 - 11:42 AM

I have ordered this: https://shop.proastr...-2-und-s52.html

 

I wanted to mount my 2" focal reducer to it, so it is closer to the camera sensor. But the reducer does not fit ... is it the wrong adapter?

 

The reducer is this one: https://www.teleskop...tergewinde.html

 

Can you help?

Sorry cannot work out what you are trying to do exactly.

The adaptor is for a Fuji canera of some variety - Fujifilm X from the description.

Assume you have a Fujifilm X - not stated but if not then not the right T ring.

 

Assume that you have then I assume the lower surface we cannot see has a bayonet fitting to mate to the camera.

The upper surface thatwe can see is apparently the usual T2 thread. And there the fun starts - number given seem to imply a 52mm whereas T2 is 42mm. Although in the Detail section they do have a S52/T2 adaptor mentioned.

 

Also I keep seeing "Astro T-2 system" quoted.

Have to say "Why do I get the impression that this is Baaders Astro T-2 system that matches no one elses ?
 

Likely need a more detail of the equipment in use but finally as the adaptor is described as Wide it should I expect move the camera away from the reducer whereas you say "I wanted to mount my 2" focal reducer to it, so it is closer to the camera sensor.".

 

Reducer+Wide T adaptor means greater separation from Reducer to Sensor.



#4 alberto2000

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Posted 02 July 2020 - 12:07 PM

Sorry cannot work out what you are trying to do exactly.

The adaptor is for a Fuji canera of some variety - Fujifilm X from the description.

Assume you have a Fujifilm X - not stated but if not then not the right T ring.

 

Assume that you have then I assume the lower surface we cannot see has a bayonet fitting to mate to the camera.

The upper surface thatwe can see is apparently the usual T2 thread. And there the fun starts - number given seem to imply a 52mm whereas T2 is 42mm. Although in the Detail section they do have a S52/T2 adaptor mentioned.

 

Also I keep seeing "Astro T-2 system" quoted.

Have to say "Why do I get the impression that this is Baaders Astro T-2 system that matches no one elses ?
 

Likely need a more detail of the equipment in use but finally as the adaptor is described as Wide it should I expect move the camera away from the reducer whereas you say "I wanted to mount my 2" focal reducer to it, so it is closer to the camera sensor.".

 

Reducer+Wide T adaptor means greater separation from Reducer to Sensor.

So I have a Fuji camera. The Baader adapter fits it perfectly. But the Baader adapter won't accept my 2" extension tubes/ focal reducer which I believe are standard T2. Did I buy a proprietary Baader adapter that is not compatible to standard T2?



#5 kathyastro

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Posted 02 July 2020 - 12:10 PM

T2 and 2" are completely different threads.  You need an adapter to connect them.



#6 alberto2000

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Posted 02 July 2020 - 12:17 PM

T2 and 2" are completely different threads.  You need an adapter to connect them.

Thanks - I see. Like this? https://www.teleskop...roducts_id/2742


Edited by alberto2000, 02 July 2020 - 12:17 PM.


#7 alberto2000

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Posted 02 July 2020 - 02:02 PM

OK I just made one for myself. I had a ring lying around from an older Nikon to T2 adapter, which was slightly too large to fit into the Baader Fuji X to T2. So I used some good ol manpower to grind that thing off a bit so it would snugly fit and is now secured with little grub screws.

 

Some photos https://imgur.com/a/UArgk9K




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