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Horse's Head in Ha - Atik 314L+

Gina

By Gina
in Imaging - Deep Sky

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Gina

Gina

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Looks about right for the Atik, well caught! It could probably take some contrast enhancement too as you seem to have enough data.

There is no shame in using a clone brush to eliminate the odd hot pixel or cosmic ray strike ;)

Thank you :) I've taken that last "No Darks" image and stretched it some more.

post-13131-0-31485200-1358709183_thumb.p

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ianaiken

ianaiken

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Hi Gina excellent. I've been doing some testing on the Atik and some reading and my conclusion is that darks are not really required. I use 5s darks simply to remove bias signal from the lights, although I could do this just as easily with my bias. I was hoping my master dark would remove hotpixels but for some reason in PI this is not happening, so I need to look into that.

I run the Atik around -22 to -20 and the dark signal is very small. When I compare a 5s with 600s there is no difference that I can see in the image statistics.

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Gina

Gina

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Hi Gina excellent.

Thank you :)
I've been doing some testing on the Atik and some reading and my conclusion is that darks are not really required. I use 5s darks simply to remove bias signal from the lights, although I could do this just as easily with my bias. I was hoping my master dark would remove hotpixels but for some reason in PI this is not happening, so I need to look into that.
I agree that darks aren't necessary to remove noise and I believe DSS will remove hot pixels but I've forgotten how - must look it up.
I run the Atik around -22 to -20 and the dark signal is very small. When I compare a 5s with 600s there is no difference that I can see in the image statistics.
I run mine at -15C and that last image used 20m or 1200s lights and I don't think there's any dark noise. The only difference with or without darks is the hot pixels.
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Gina

Gina

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Lovely clear image Gina, you got a filter wheel on the way?

Thank you :) The Atik CCD camera is a real delight :) As for filter wheel, not on the way - on the camera :) An Atik EFW2 and it's also a delight :) Wish the weather was a delight!!! :(
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Gina

Gina

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Beatiful Gina, just need some good weather now to add to it.

Thank you :) Agreed about the weather!
Little does the wife know when i said we would have a new attic it's not quite what i meant :evil:
:D
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Andyfx

Andyfx

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Will you be adding colour to the monochrome images too?

Thank you :) The Atik CCD camera is a real delight :) As for filter wheel, not on the way - on the camera :) An Atik EFW2 and it's also a delight :) Wish the weather was a delight!!! :(

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Gina

Gina

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Great to see another of your images...especially after following a lot of your self build stuff.

Keep up the good work:D

Sent from my GT-P5110 using Tapatalk 2

Thank you :)
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