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Issues with attaching a field flattener to altair astro telescope

astrophotography beginner equipment eyepieces
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#1 montra

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Posted 20 January 2019 - 01:37 PM

I got an Altair Wave Series 80mm F6 Super ED Triplet APO telescope with recommended field flattener (The Altair Planostar 1.0x Field Flattener (PLANOS-2-1.0-80-F6-M48)). My issue is that I dont know how to attach the field flattener to the telescope. Altair astro writes on their internet site for the telescope: The optional Field flatteners can be attached directly by unscrewing the self centering rear assembly and removing it from the focuser.

But I really dont know how, and there was no user manual with the telescope or the flattener.

I attached a photo showing  the self centering assembly (the 1,25" piece is taken out in this photo) and put up some numbers beside some screws, but it doesnt seem to me it is any of those screws. I have tryed to take out both the the number 3 and 4, and nr 1 is for the focuser. the nr 2 screw is a flat screw on the top. Could it be those very small screws in the front? Anyone having done this before? or have experience with the altair astro telescopes?

 

I got an 48 mm adapter for attaching the field flattener to my camera. and I also got an adapter for attaching the camera to the telescope via the 1,25" piece. But I cant attach the field flattener to the telescope.

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#2 OldManSky

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Posted 20 January 2019 - 04:10 PM

If it's what I think it is, it's simpler than you think.

See where your #3 screw is (the holder for whatever you insert into the "self centering rear assembly")?

Grab the knurled outside of that piece. 

Unscrew (turn counter-clockwise).

The whole thing will unscrew from the focuser.

 

Now screw the FF onto the threads it came off of.

 

The WO scopes are the same way -- you have to unscrew the 2" holder from the focuser, and the FF goes on in its place.


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#3 montra

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Posted 05 February 2019 - 06:04 AM

Update, in case others will face the same problem as me:

I had to unscrew 3 small screws that is around the edge where the number 2 is on the photo - it is not the 3 small screws the can be seen in front on the photo. The screws the has to be removed are black and does not show in the photo above.

After removing the screws I could take out the 2" eyepiece and input/screw the FF to the focuser. 




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