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Old 11-09-2020, 09:12 AM
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spacezebra (Petra)
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Seeking advice on image train

Greetings

Seeking advice on image train for

ED102 => Extension Tube?? => Flattner/Reducer?? => ASI294 MC Pro

Finally I have a moment to get stuck into a imaging and I have a few questions about the correct train for this.

Some Youtube videos show an extension tube..before the flattner/reducer.. however the gentleman in the video does not state what sort of extension tube. Can someone shed some light on this?

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Cheers Petra
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Old 11-09-2020, 09:16 AM
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multiweb (Marc)
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Good day Petra, Look at it this way A and B being extension tubes:

ED102 ... [A]... Flattener/Reducer... [B]... ASI294 MC PRO

[A] matters to bring you to focus. Length is not critical. No bearing on field correction. Any tube will do.
[B] length is critical to correct your field. So ideally something you can set.
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Old 11-09-2020, 09:36 AM
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spacezebra (Petra)
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Cool

I found a 50mm extension tube in my container of goodies, awesome.


Quote:
Originally Posted by multiweb View Post
Good day Petra, Look at it this way A and B being extension tubes:

ED102 ... [A]... Flattener/Reducer... [B]... ASI294 MC PRO

[A] matters to bring you to focus. Length is not critical. No bearing on field correction. Any tube will do.
[B] length is critical to correct your field. So ideally something you can set.

Many thanks awesome dude!
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