Quote:
Originally Posted by cybereye
I knew I'd seen some mention of something like the problem I was having but for the life of me I couldn't remember where! And guess what, I attach my UHC-S filter to my camera using the same adapter that you use!!
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As suggested in my thread, maybe try imaging without the filter?
Quote:
Originally Posted by cybereye
In the business I'm in - seismic processing - we get secondary bounces of sound called multiples - these are sound signals that are either bouncing of the water bottom or within coal horizons. It makes sense that if the light is bouncing between the filter and the glass of the camera that the focal length will have changed and would then look like an out of focus star.
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That all sounds reasonable with me.
Quote:
Originally Posted by cybereye
However I'm not sure why it is offset from Alnitak rather than centred around it?  |
Yeah, that is what I wondered too. You can also see heaps of little ones that go around Alnitak (~2cm away).
Quote:
Originally Posted by cybereye
Now if there was some way to tame these light multiples....
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Simple...don't use the filters
