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iso comparison
Hi all, this is 2 images of ngc3132, the first is iso 800, 2 minute exposures and the second is iso 400 and 5 minute exposures. The second, unfortunately is slightly out of focus,and that is why the fainter stars are less prominent in the second image.
The interesting thing I found is the colour difference. Could iso 400 be more red sensitive with the Astro 40D?
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