Thread: Hand held Orion
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Old 7th February 2019
MikeOxon MikeOxon is online now
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Re: Hand held Orion

Originally Posted by MJ224 View Post
Are those red spots hot pixels?? I had some during my last Astro foray. I carried out the Pixel Count or mapping, on the camera, so hopefully they are gone.....
Yes, I think most of them are - although Betelgeuse really is red!

The NZ shot was taken on my old E-M1-i, so I can't go back and check.

I do see a few on my E-M1-ii, which disappear when noise reduction is applied, at exposures longer than 1 second. I guess it would always be worth taking a dark reference image at the same time, since these things can be temperature sensitive.
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