Quote:
Originally Posted by Merlin66
The Orion prime focus adaptor splits into two parts.
The chrome nosepiece - a 2" male to 2" x 24tpi (SCT) male thread.
The black portion is a 2" x 24tpi (SCT) female thread and a male T thread (42mm x 0.75)
I use it to mount SCT accessories on my ED80. The image shows a reducer fitted to the adaptor.
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Thanks Ken.
This is why I got excited when I saw it. I needed to connect my image train to the Celestron Edge HD 9.25 and the only thing missing was a piece very similar to this. So, I tried to connect it to the back of the adapter plate (some refer to this part as the rear collar. I'm not sure which is correct), but it wouldn't fit.
It was very slightly too small to fit around the threads of the adapter plate. So I was forced to buy a part that others in the US are using.
I'm also confused as to the threading types. Can someone explain, or give a link to a webpage that explains all the different threads type
AND where they attach to on a telescope. I thought the 24tpi (SCT) threads are the ones off the back of the adapter plate.
Lets not even start with T, T2, 42, 48 etc.etc.
Edit: Also, if someone could explain how to add image thumbnails to a post as opposed to the web links I used, that would be much appreciated.