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debris in my field of view .. celestron c8 scope

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#1 Kevin Rea

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Posted 14 February 2020 - 09:21 PM

Hi guys,

i am using a celestron c8, with a celestron 6.3 reducer, a zwo asi camera.

 

in live view, i have this debris on my view.

i have taken apart the scope from the back connection and cleaned everything.

i have cleaned the very front scope glass.

i have cleaned inside the zwo asi camera.

 

i still have this junk on my image.

where else on the c8 would i look ?

 

https://www.hamlogbo...tscreenshot.jpg

 

thanks,

kevin rea

lancaster, calif. usa



#2 17.5Dob

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Posted 14 February 2020 - 09:54 PM

That's dust sitting on your camera sensor. Any more than a fraction of an inch in front of the sensor, and dust is invisible...



#3 StarBurger

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Posted 14 February 2020 - 10:01 PM

The" junk " is very focused and clearly on the sensor of the camera. 17.5 is right.

Either take flats to get rid of it or do some housework and clean the sensor.

From bitter experience I know it can be very difficult to get rid of it manually and, like a bad rash, it keeps coming back.



#4 G-Tower

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Posted 14 February 2020 - 10:08 PM

Its on the chip. If it won't come off send it back, if you bought used now you know why.



#5 Kevin Rea

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Posted 14 February 2020 - 10:28 PM

ok...thanks guys..i will see if i can get to the chip.

 

kevin




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