How to reduce hot pixels in 300D?


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Yongliang

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Apr 27, 2002
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Singapore, East
#1
Hi all,

I just used my Canon 300D to do some long exposure night shots ( 5secs, 8secs, etc ). However, I did notice a number of hot pixels in the pics, esp in the dark skies.
Now, since DSLR doesn't have in-camera noise reduction function ( or is there? ), how do I then remove these hot pixels.

If I have to use sw like photoshop, what should I do?

Thanks for helping me, a newbie in DSLR! =)
 

mpenza

Senior Member
Jan 18, 2002
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Singapore
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#2
there's in-camera noise reduction function. if not, you'll see a lot more noise.

you could do a darkframe deduction using software. take a pic immediately after the pic at the same duration with the lens cap covered. subtract this pic from the original pic and fill in the "blanks".
 

May 24, 2003
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#3
I've tried a few hot pixel remover software. My favourite is PixelZap . However, it's shareware.

I've also tried darkframe subtraction software. However, I find that they tend to leave "black holes" where the hot pixels used to be.
 

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