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Hot spot in image

collimation
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#1 bookworm14

bookworm14

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Posted 06 September 2019 - 09:43 AM

A picture of the moon that I took on my 8” Celestron sct has a large bright spot in the image. I used

 a 90 degree diagonal, 2x Barlow, and a 25mm eyepiece in the camera adapter. Where does such a large hot spot come from? Bad collimation or something else? I tried to upload a picture I took using my iPhone but the image was too large. 500kb limit is too small.



#2 beggarly

beggarly

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Posted 06 September 2019 - 09:48 AM

Use a program like https://www.irfanview.com/ to resize/resample the image.


  • graffias79 likes this


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