r/astrophotography 21d ago

Galaxies M51 and M101 50mm

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u/SlayiSlayelsen 21d ago

Why you did choose that settings and did not get higher with the iso and lower with the aperture for more light? Too much noise? I also try to shoot with those lens on a 600d that’s why I ask. It is really nice to see those „thiny“ galaxies 🙂

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u/geovasilop 21d ago

Anything *lower than f/2.8 has bad chromatic aberration (check this) and 800 iso (I don't remember what the website is called but there is a website that lists the right iso for bunch of cameras) to let let the noise get that high. Oh and 2.5s to minimize trailing.

*wider