adapting an APO Televid 82 to a non-leica camera body

[alpheratz06]

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Hello

I'm  tackling the following issue since ages . I would like to use my 82 Apo Televid as a lens , for various purpose : nature , and possibly astrophotography.

A) i'm chasing the leica 42306 adapter (no longer in production, but available in some places)

I have a question with this adapter , it's offers a T-mount interface in the back (camera side)  but i've seen a female thread. I'm puzzled because I would have been expecting a Male thread, because all the T-mount camera adapter I have seen have F thread in the front.

Anybody having experience of such adapter would be welcome.

B) even more difficult question: my ultimate idea is to use the Televid as a "deluxe" guiding scope in astrophotography: for that purpose, I would like to use its native focal length of 440mm, that is to say bypass the 42306 that works as a focal multiplier .

I have seen that when one removes the eyepiece of the Televid, there is a Male thread (in parallel with the Leica  "bayonet" mount (translation from French).  This thread looks like 42x1mm or 42x075mm . I just wander if it would be possible to adapt an eyepiece holderr to this thread, to use standard eyepieces or a camera.

Any help, comment, advice, would be highly appreciated

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[Michael Geschlecht]

Hello Alpheratz06,

Welcome o the Forum.

42mm X 1mm is Practica/Pentax screw thread.

42mm X 0.75mm is T2.

Best Regards,

Michael

Edited March 11, 2021 by Michael Geschlecht