this post was submitted on 22 Jun 2025
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Astrophotography

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I took 230 11s ISO1600 f/1.8 esposures and one 2min ISO600 f/1.8 for the foreground.

Both with my Nikon Z5 and Nikkor Z 24mm f/1.8 S

For post processing I used sequator and affinity photo 2

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[–] blendan@lemmy.world 3 points 1 week ago

If you're only taking a single exposure then yes lower is better (when shooting a static scene from a tripod)

But I have taken multiple exposures and combined them in post so the noise averages out.

Also the stars move so there's only so much light I can capture and I would need to boost the exposure in post that would also then increase the noise.

As for the foreground, I was cold and didn't want to wait 8min extra so I used a bit more ISO.

The real world difference between low and higher ISO isn't as bad as it seems in the datasheet, especially when you throw postprocessing in the mix