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Astrosurf

Stripes on image

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This is a screenshot of my new ASI224MC via my Coronado PST. I've never had this problem with my 120MC. In fact, I ended up having to use it. Same problem in FireCapture. Any ideas?

Alexxx

 

 

camera issue.jpg

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Alex,

Looks like Newton Rings....

These are caused by interference between the CCD chip and the coverplate. The narrowband Ha wavelength makes them more obvious.

Usual answer is to slightly tilt the camera. I use a ZWO T2 tilter with my ASI 174.

 

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On 11/03/2019 at 23:10, Merlin66 said:

Alex,

Looks like Newton Rings....

These are caused by interference between the CCD chip and the coverplate. The narrowband Ha wavelength makes them more obvious.

Usual answer is to slightly tilt the camera. I use a ZWO T2 tilter with my ASI 174.

 

I have exactly the same problem with my Neximage5 in my modded PST.
It's like watching a 405 line B&W CRT screen from my childhood [in the last century.] :blush:
I keep expecting Andy Pandy to appear. Or, far more likely, the BBC test card.  :icon_clown:

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Thought  they had the same sensor but after a quick check they have the same size pixels but the 224 has a slightly bigger sensor..

On a different note Alex, could you post a pic of your setup with the pst, are you using a Barlow etc?

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Thanks all. I am using a 2x Barlow as the camera won't come to focus without it. I never have this problem with my 120 though.

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