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Old 30-04-2011, 11:56 PM
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PRejto (Peter)
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TEC140 and Borg 7887 .85X Reducer

I've read that this is a successful combination but would like further confirmation before committing to a purchase.

I also have concerns/questions about what I will need in addition to get the proper distance from the Borg to the CCD. And, to possibly complicate things further, I'd like to retain the option of using a 2" IDAS LP Filter in combination with my G2-8300 Moravian camera. At the moment I can just screw the IDAS into the 2" nosepiece of the camera.

From Hutec site:
Interface specifications:
  • A: M57P0.75 Male
  • B: M49.8P0.75 Male
Notes:
  1. Accomodates 52mm filter on the objective side.
  2. Distance from B-side interface flange to image plane: 55mm
I think the IDAS LP filter is 48mm.....

So, do I need a different nosepiece for the camera? How does the Borg attach to the 2" focuser (Feather Touch 3545)?

Thanks for any assistance!!!
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Old 01-05-2011, 05:55 PM
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PRejto (Peter)
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I've answered part of my question. I need Borg Part # 7425 which screws onto the A" side of the reducer and is a 2" nose piece. Hopefully my 2" LP Filter will screw into the nose.

I don't yet understand how I will get from 49.8 "B" side male threads to my camera.
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